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METTLE ATOMS TEST
For January 9th, 2013
27
Science
9th Grade
01/08/2013

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Cards

Term
An atom contains...
Definition
Protons, neutrons, and electrons
Term
The protons and neutrons are found in the...
Definition
Nucleus
Term
Protons have a:
Definition
Positive charge
Term
Neutrons have:
Definition
No charge
Term
The electrons can be found...
Definition
Outside the nucleus
Term
Electrons have a:
Definition
Negative charge
Term
Atomic numbers tell...
Definition
How many protons are in the nucleus
Term
Atomic mass =
Definition
number of protons + number of neutrons
Term
To find neutron number...
Definition
Subtract atomic number from atomic mass
Term
The only way you get a new element is if the...
Definition
Proton number changes
Term
Groups are...
Definition
Columns
Term
Periods are...
Definition
Rows
Term
Groups have the same amount of...
Definition
valence electrons
Term
As you move from left to right on the Periodic Table the elements increase in...
Definition
Electronegativity
Term
The outermost region where there are electrons is called the:
Definition
Valence shell
Term
The valence shell contains...
Definition
Valence electrons
Term
Energy levels are divided into smaller groups called...
Definition
Orbitals
Term
Atomic mass is always ______ than the atomic number
Definition
bigger
Term
How do you find valence electrons?
Definition
Count how many over the element is in it's row
Term
The most electrons that can be in an energy level is...
Definition
8
Term
Row above the certain element is the number of _________ in that ______ _____
Definition
electrons, energy level
Term
How do you find the energy level?
Definition
Count the rows
Term
A full valence shell are...
Definition
Noble gases
Term
Noble gases have _____ valence electrons
Definition
Eight
Term
What is the exception to the Octet Rule?
Definition
Helium
Term
Octet Rule
Definition
Must have 8e- in valence shell, IF ITS FULL
Term
Use the lowest number of charges to attain the ______ _______ ________.
Definition
Eight valence electrons
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