Term
List the particles of an atom and they're charge and where they can be found in an atom. |
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Definition
Proton: 1 positive charge; in nucleus
Neutron; no charge; in nucleus
Electron: 1 negative charge; circling around nucleus |
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Definition
The smallest particle into which an element can be divided and still be the same substance. |
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Definition
Negatively charged particles found in all atoms; electrons are involved in the formation of chemical bonds. |
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Term
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Definition
An full explanation for a broad range of hypotheses and obsevations that have been supported by testing. |
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Term
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Definition
A representation of an object or system. |
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Term
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Definition
The tiny, extremely dense, positively charged region in the center of an atom; made up of protons and neutrons. |
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Definition
The regions inside an atom where electrons are likely to be found. |
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Term
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Definition
The positively charged particles of the nucleus; the number of protons determines the identity of an element. |
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Term
The number of protons in the nucleus is called the _______________,
and it is always a whole number |
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Definition
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Term
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Definition
The SI unit used to express the masses of particles in an atom. |
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Term
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Definition
Atoms that have the same number of protons but have different numbers of neutrons. |
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Term
The sum of the protons and neutrons in an atom and the average mass of the atom is called the ___________. |
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Definition
Atomic Mass or Atomic Weight |
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Term
The rounded atomic mass is the ____________. |
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Definition
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Term
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Definition
An element where the number of protons is not equal to the amount of electrons which gives the element a charge (+ or -) instead of being neutral. |
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Term
What is the charge of an atom that has 5 protons and 10 electrons? |
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Definition
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Term
What is the charge of an atom that has 17 electrons and 28 protons? |
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Definition
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Term
Draw an example of Shorthand Notation. |
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Definition
(Check notes for this one)
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Term
What are #1, #2, and #3 supposed to be? (for shorthand notation)
#1
#2
#3
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Definition
#1: Mass number
#2: Symbol of element
#3: Atomic number |
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Term
Draw an example of Shorthand Notation for an ion with a charge of +3. |
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Definition
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Term
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Definition
Pure substances that cannot be seperated or broken down into simpler subsatances by physical or chemical means. |
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Term
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Definition
A substance in which there is only one type of particle. |
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Term
List the three main types of elements. |
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Definition
Metals, Nonmetals, and Metalloids |
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Term
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Definition
Shiny.
Good conductors of thermal and electric energy.
Most are malleable and ductile. |
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Term
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Definition
Have properties of both metals and nonmetals.
Semi-conductors.
Semi-ductile and semi-malleable. |
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Term
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Definition
Dull.
Poor conductors.
Great insulators.
Brittle and weak.
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Term
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Definition
Combination of two or more elements that are not chemically combined.
Can be seperated by physical means. |
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Term
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Definition
A pure substance made up of two or more elements that are chemically combined.
Can be seperated by chemical means. |
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Term
1. Mixtures can be ________ or _______.
2. The 3 types of mixtures are ________, ________, or ________. |
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Definition
1. Homogeneous; heterogeneous
2. Solutions; suspensions; colliods |
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Term
List at least 2 ways of seperating mixtures. |
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Definition
Distillation, Magnet, or Centrifuge
(as long as you have 2) |
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Term
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Definition
A mixture that is homogeneous and is made up of a solute that has been dissolved in a solvent.
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Term
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Definition
The substance that is dissolved in a solution. |
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Term
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Definition
The substance that dissolves the solute in a solution. |
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Term
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Definition
A mixture where the particles are dispersed throughout a liquid or gas but are large enough they settle out.
-solute does not dissolve in suspensions |
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Term
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Definition
A mixture where the particles are dispersed evenly throughout the substance but are too small and light to settle out. |
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Term
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Definition
Measures the amount of solute in the solvent
-unit is Molarity (M)
-another unit is grams in a specific volume |
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Term
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Definition
Solution where it can dissolve more solute. |
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Term
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Definition
Solution where it can't dissolve more solute. |
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Term
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Definition
The amount of solute needed to make a solution completely saturated.
The ability to dissolve in another substance. |
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Term
List at least two ways to increase solubility. |
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Definition
Mixing the substance, heating the substance, or crushing the solute. |
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Term
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Definition
A property special to a substance regardless of the amount of the substance. Helps you identify the element. |
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Term
Give one example of a characteristic property. |
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Definition
Density, boiling point, ductility, maleability, reactive with something (more in notes if there are other examples you wish to put).
(as long as you have one) |
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Term
Which is there more of in a solution?
A. Solute
B. None, they're equal in amount
C. Solvent |
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Definition
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Term
Which of these can be filtered?
A. Suspension
B. Colloid
C. Solution
D.Both A and B
E. Both B and C
F. Both A and C |
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Definition
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Term
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Definition
The amount of space a substance takes up.
Units: cm3 (CC) or liters (l) |
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Term
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Definition
The amount of matter in an object.
Units: gram (g) |
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Term
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Definition
The distance between points.
Units: cm, m, in, km, ft, mm, mile, etc. |
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Term
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Definition
Anything that has mass and volume.
All matter is made of atoms |
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Term
List the four states of matter. |
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Definition
Gas, Liquid, Solid, Plasma |
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Term
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Definition
a state of matter in which matter has a definite shape and volume. The atoms are very attracted to eachother and stay together, so the atoms do not move out of place.
Units for volume: cubic units (like cm3) or mL and L. |
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Term
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Definition
A state of matter in which matter takes the shape of container and has a definite volume but not a definite shape. The atoms are not attracted to eachother as much as the atoms in solids but still are attracted. The atoms can move past eachother freely. |
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Term
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Definition
A state of matter that does not have a definite shape or a definite volume and whose particles have broken apart. Composed of electrons and positively charged ions. Conducts electric current. Effected by electric feilds. |
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Term
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Definition
A state of matter in which matter changes in both shape and volume. |
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Term
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Definition
The amount of force exerted on a given area. |
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Term
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Definition
A law that states that the volume of a gas increases as the pressure decreases. |
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Term
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Definition
A law that states that the volume of a gas increases as the temperature increases. |
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Term
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Definition
The conversion of a substance from one state of matter to another. |
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Term
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Definition
The change of state from a solid to a liquid. |
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Term
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Definition
The change of state from a liquid to a solid. |
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Term
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Definition
The change of state from a liquid to a gas.
Includes evaporization and boiling. |
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Term
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Definition
The change of state from a gas to a liquid. |
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Term
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Definition
The change of state from a solid directly into a gas. |
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Term
Exothermic Changes of States |
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Definition
The changes of states where heat is leaving the substance, which is nessesary for the change of state to occur. |
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Term
Endothermic Changes of States |
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Definition
The changes of states where heat is entering the substance, which is nessesary for the change of state to occur. |
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Term
What are the two properties of liquids? |
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Definition
Surface Tension and Viscosity |
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Term
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Definition
A force acting on liquid on surface. Cause spherical dot formation. |
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Term
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Definition
Resistance of flow.
-thicker liquids are more viscous. |
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Term
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Definition
The measure of how fast the molecules are moving.
-amount of energy, also caled heat. |
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Term
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Definition
A type of vaporization that occurs at the substance's boiling point throughout the liquid. |
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Term
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Definition
A type of vaporization that occurs below the boiling point only at the surface of the liquid. |
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Term
1. _________ effects boiling points.
2. The ________ you get the (A.lower ;B.bigger) the boiling point gets. |
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Definition
1. Alttitude
2. Higher; bigger |
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Term
List the exothermic changes |
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Definition
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Term
List the Endothermic changes. |
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Definition
Melting, Vaporization, Sublimation |
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Term
What are #1, #2, #3,and #4 supposed to be for an element on the table of elements?
#1
#2
#3
#4 |
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Definition
#1: Atomic Number
#2: Element's Symbol
#3: Element's Name
#4: Atomic Mass or Atomic weight |
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Term
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Definition
A property of matter based on it's ability to change into a new substance with new properties. |
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Term
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Definition
A property of matter that can be observed without changing the identity of the substance. |
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Term
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Definition
The amount of matter in a given space; mass per unit volume |
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Term
What is the equation for Density? |
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Definition
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Term
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Definition
A change that occurs when two or more substances are changed into entirely new substances with new properties; cannot be reversed through physical means. |
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Term
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Definition
Explanation backed up by experiments for a range of hypothesises and observations. |
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Term
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Definition
Introduced the idea of atoms, saying they were small, hard particles and that they were idivisible. He also said that all substances were made up of atoms.
He also said that atoms came in different shapes. |
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Term
What word does the English word "atom" come from and what did that word mean? |
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Definition
It came from "atomos", meaning indivisible. |
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Term
What thing(s) did Democritis say that was incorrect?
A. Atoms are small, hard particles
B. Atoms come in different shapes
C. All substances are made up of atoms
D. Atoms are indivisible
E. None of the above |
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Definition
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Term
1. Who opposed (went against, hated) Democritis and his ideas?
2. Which of the two won people's respect? |
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Definition
1. Aristotle
2. Aristotle |
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Term
List Dalton's Atomic Theory |
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Definition
1) All substances are made of atoms, and atoms are small particles that cannot be divided, created, or destroyed.
2) Atoms of the same element are exactly alike, and atoms of different elements are different.
3) Atoms join with other atoms to make new substances.
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Term
Democritis had his theory in _______. |
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Definition
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Term
Dalton had his theory in _______. |
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Definition
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Term
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Definition
Discovered negative particles which we now call electrons. Also discovered that there was positive material in an atom because something had to balance the negative particles. |
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Term
JJ Tompson conducted a ___________ experiment. |
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Definition
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Term
JJ Tompson made the ____________ model. |
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Definition
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Term
What did JJ Thomson call the negatively charged particles in an atom? |
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Definition
He called them corpusles. |
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Term
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Definition
Discovered protons are densely packed in the center of an atom. He also discovered that the atom is alot of epty space with electrons on the outside of the nucleus. |
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Term
UtrEfDrHo conducted the __________ experiment.
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Definition
Rutherford conducted the Gold Foil expirement |
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Term
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Definition
Said that electrons had defined paths that they traveled on. He said they would jump from path to path. |
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Term
Which part of Rutherford's discoveries was wrong?
A. None of the below
B. Protons are densly packed in the center of the atom.
C. The atom is alot of empty space with electrons on the outside of the nucleus |
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Definition
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Term
The modern day theory was made by whom? |
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Definition
Schroedinger and Heisenberg |
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Term
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Definition
Says that electrons can be found in electron clouds |
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