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Chemistry
Based on simple chemistry introduced in the traditional Physical Science Unit in AK high schools.
38
Chemistry
9th Grade
03/06/2017

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Cards

Term
Isotope
Definition
An atom containing the same amount of protons as another, but with a different weight.
Term
Atomic Number
Definition
The number of protons contained in an atom.
Term
Atomic Mass
Definition
The averaged weight of all existing variants and isotopes.
Term
Proton
Definition
Determines the element and positive charge.
Term
Electron
Definition
Determines the negative charge.
Term
Neutron
Definition
Determines mass, along with proton. Neutral charge.
Term
Groups
Definition
Vertical, they determine the amount of valence electrons.
Term
Periods
Definition
Horizontal, they determine when a new electron shell is added to an atom.
Term
Alkali
Definition
Far left on the periodic table, reactive. Metal.
Term
Earth Metals
Definition
Second from the left, not as reactive as alkali. Metal.
Term
Transition Metals
Definition
In the middle of the table, fairly unreactive. Metal.
Term
Halogens
Definition
Second from the right. Gaseous.
Term
Noble Gases
Definition
Far right. Gaseous.
Term
Cation
Definition
The positive charge on an atom.
Term
Anion
Definition
The negative charge on an atom.
Term
Name the element[image]
Definition
Helium
Term
Give the number of protons
[image]
Definition
2
Term
Give the number of electrons
[image]
Definition
2
Term
Give the number of neutrons
[image]
Definition
2
Term
Give the typical ionic charge (cation, anion, or none)
[image]
Definition
None
Term
Give the mass
[image]
Definition
4.0026
Term
What period is this element in?
[image]
Definition
Period 1
Term
What group is this element in?
[image]
Definition
Group 18
Term
What family is this element in?
[image]
Definition
Noble Gases
Term
How many electrons are in the first shell?
Definition
2
Term
How many electrons are in the second shell?
Definition
8
Term
Is this atom of beryllium more likely to lose or gain electrons to bond?[image]
Definition
More likely to lose
Term
IS this atom of oxygen more likely to lose or gain electrons to bond?
[image]
Definition
More likely to gain
Term
What are valence electrons?
Definition
Electrons on the outer shell of an atom.
Term
What diagram of electrons portrays the valence electrons only?
Definition
Lewis Dot Diagram
Term
Ion
Definition
The negative or positive charge carried by an atom.
Term
How is an ion formed?
Definition
More electrons than protons, or more protons that electrons.
Term
Which elements become cations?
Definition
The ones on the left side of the periodic table, they lose electrons in bonding.
Term
Which elements become anions?
Definition
The ones on the right side of the periodic table, they gain electrons in bonding.
Term
Why are elements at the far left and second column from the right the most reactive?
Definition
They are closest to having full valence shells.
Term
What is covalent bonding and how is it different than ionic bonding?
Definition
Covalent bonding involves the sharing of electrons by atoms, where as ionic bonding involves the loss and gain of electrons.
Term
Is a chemical equation with:
Reactants: 2 Oxygen, 3 Nitrogen
Products: 3 Nitrogen, 2 Oxygen
balanced?
Definition
Yes
Term
Is a chemical formula with:
Reactants: 2 Beryllium, 1 Lithium
Products: 2 Lithium, 2 Beryllium
balanced?
Definition
No
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