Term
What scientist is known for the arrangement of the Periodic Table of Elements?
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Definition
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Term
| How many elements presently make up the periodic table of elements? |
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Definition
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Term
How are elements arranged on the periodic table?
[image]
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Definition
| Left to right top to bottom by increasing atomic number. |
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Term
How can elements be located?
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Definition
| Mass #, atomic #, groups/famililies, periods, properties, state of matter, symbols, categories, and element types. |
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Term
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Definition
| By the founder, latin/greek origin meanings, place found, and common properties. |
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Term
| How does Einsteinium, Iron, Californium, and Silicon get their name? |
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Definition
| Founder, latin/greek origin, location, and properties |
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Term
What are the three basic types of elements?
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Definition
| metals, metalloids/semimetals, and nonmetals |
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Term
| Where are metals usually found? |
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Definition
| left, middle, and bottom of the periodic table |
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Term
| Where are metalloids/semimetals located? |
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Definition
| top middle zig zag/steps of the periodic table |
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Term
| Where are nonmetals usually found? |
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Definition
| middle and upper right of the periodic table with the exception of hydrogen -upper left side. |
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Term
| Why is hydrogen located in the upper left of the periodic table? |
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Definition
| It has the lowest atomic number. |
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Term
| What type of element is hydrogen? |
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Definition
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Term
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Definition
| single, double, or triple letters that represent elements |
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Term
| How should symbols be written? |
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Definition
| The first letter should be capitolized the second or third letter should be lower case. |
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Term
| How many subgroups of elements exist? |
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Definition
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Term
| What are the names of the subgroups of elements in the correct sequence? |
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Definition
| Alkali metals, alkaline metals, transitional metals, regular metals, metalloids/semimetals, regular nonmetals, halogen nonmetals, noble gas nonmetals, unknown metal elements, lanthanoid inner-transitional metals, and acthinoid inner-transitional metals. |
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Term
What is a mass number?
[image] |
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Definition
| number of protons & neutrons inside the nucleus of an atom (big number) |
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Term
What is an atomic number?
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Definition
| number of protons for an atom (small#) |
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Term
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Definition
| Negatively charged subatomic particles located outside the nucleus of an atom |
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Term
What is a proton?
[image]
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Definition
| Positively charge subatomic particle located in the inside of the nucleus of an atom. |
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Term
What is a neutron?
[image] |
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Definition
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Term
What is a group/family?
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Definition
| (1-18 ) left to right horizontal rows of elements on the periodic table |
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Term
What is a period?
[image] |
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Definition
| (1-7)rows of elements located on the left side of the periodic table |
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Term
| What are properties of elements? |
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Definition
| physical descriptions of elements such as size, sight, shape, texture, sound, taste, smell, weight, bouyancy, mass, etc. |
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Term
What are the different states of matter?
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Definition
| solid, liquid, gas, plasma |
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Term
| What are some examples of states of matter? |
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Definition
| ice-solid, water-liquid, air-gas, and star-plasma |
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Term
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Definition
| Variations of an element based on the neutron number. |
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Term
What are some carbon isotopes examples?
[image]
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Definition
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Term
What are energy levels/ electron cloud model?
[image]
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Definition
| Electron shell located outside the nucleus of an atom. |
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Term
How many energy levels exist?
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Definition
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Term
How many electrons does each energy level hold?
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Definition
| 1st=2e-, 2nd=8e-, 3rd=18e-, 4th=32e-, 5th=50e-, 6th=72e-, 7th=98e- |
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Term
| What is the energy level formula? |
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Definition
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Term
| What is the difference between compounds and elements? |
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Definition
| Elements are represented with a capital letter. Compounds are presented with two or more different capital letters. |
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Term
| What is an example of elements versus compounds? |
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Definition
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Term
What are the four types of chemical reactions?
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Definition
Synthesis- combinding
Decomposition - separating
Single replacement- switching one element
Double replacement-switching two elements |
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Term
| What is an example of a synthesis, decomposition, single replacement, and double replacement chemical reactions? |
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Definition
A+B → AB or Fe + S → FeS
AB→ A+B or FeS→Fe + S
AB+C→ AC +B OR FeCl + O → FeO +Cl
AB+CD → AC +BD or FeO + HCl → FeCl + OH |
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Term
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Definition
| Chemical reaction where substances are put together. |
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Term
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Definition
| A chemical reaction where substances are taken apart. |
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Term
| What is a single reaction? |
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Definition
| A chemical reaction where one element is switched. |
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Term
| What is a double replacement? |
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Definition
| A chemical reaction where two substances are switched. |
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Term
| How should chemical equations be written? |
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Definition
| All elements must be equally balanced on both sides of the equation. |
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Term
| What is an example of a balanced equation? |
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Definition
9Fe+3SO3→ 9FeO+S3
(9) iron = (9) irons
(3) sulfur = (3) sulfurs
(9) oxygen = (9) oxygen |
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Term
| What is an example of an unbalanced equation? |
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Definition
Fe+SO3 → 2FeO+S3
(1) IRONS (2) IRONS
(1) Sulfur (3) sulfurs
(3) oxygen (2) oxygen |
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Term
| What parts make up a chemical reactions? |
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Definition
| Reactant side & Product side |
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Term
| What are some example of physical properties? |
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Definition
color - painting house
texture- washing hair
size - cutting wood
smell- spraying perfume
Arrangement- separating |
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Term
What is a physical change?
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Definition
| Physical descriptions that can be altered and reversible |
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Term
| What is a chemical change? |
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Definition
| An irreversible change of structure that may involve a physical change. |
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Term
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Definition
| The smallest particle that make up any substance. |
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Term
| How many total atoms are in the compound Fe3S4? |
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Definition
| (3) iron atoms + (4) sulfur atoms = 7 total atoms |
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Term
| What are some examples of chemical changes? |
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Definition
| cooking, mutation, burning, molding, rusting or chemical structure, straightening hair, and heating objects. |
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Term
| What is a ph scale for acid? |
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Definition
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Term
| What is a ph scale for neutral substances? |
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Definition
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Term
| What is the ph scale for a base? |
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Definition
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Term
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Definition
| well blended solution that contains a solute and solvent |
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Term
| What are different forms of mixtures? |
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Definition
solution -well blended mixture(kool aid)
suspension- multi-layered mixtures (salad dressing)
Colloid- thick cloudy nontransparent mixture (ketup)
Alloy- metal mixture (brass) |
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Term
| What are the complete electron calculation? |
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Definition
1st = 2(1)2=2(1x1)=2(1) = 2e-
2nd=2(2)2=2(2x2) = 2(4) = 8e-
3rd = 2(3)2= 2(3x3) = 2(9) = 18e-
4th = 2(4)2 = 2(4x4) = 2(16) = 32e-
5th = 2(5)2 = 2(5x5) = 2(25) = 50e-
6th = 2(6)2 = 2(6x6) = 2(36) = 72e-
7th = 2(7)2 = 2(7x7) = 2(49) = 98e- |
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Term
| What are subatomic particles? |
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Definition
| protons, electrons, and neutrons |
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Term
| What are some properties of metals? |
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Definition
good conductor of heat/electricity, shiny/luster,
durable, malleable, ductile, colorful, solid state of matter
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Term
| What are some properties of metalloids/semimetals? |
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Definition
| semi-conductors of heat/electricity, shiny/luster, and properties of both |
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Term
| What are some properties of nonmetals? |
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Definition
| good insulator, poor heat & electricity conductor, dull, brittle, pale, transparent, gas state |
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Term
| What is a periodic table of elements? |
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Definition
| An arrangement of related elements by increasing atomic numbers and similar categories |
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Term
| How are protons calculated? |
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Definition
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Term
| How are neutrons calculated? |
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Definition
| Round mass number and substract atomic number |
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Term
| How are electrons calculated? |
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Definition
| Electrons = protons = atomic numbers |
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