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12 Cards in this Set

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  • Back
An atom that has fewer than 8 valence electrons is more _______, or more likely to form a bond than an atom with 8 valence electrons.
reactive
The atomic number represents the number of __________ and _________ in the atom
protons
electrons

The levels farther from the nucleus contain electrons that have _____ energy that levels closer to the nucleus.
more
Chemical bonds involve the _________ in the atoms.
electrons
Atoms bond by gaining, losing , or sharing elecrons in order to have a _______ outermost energy level.
filled
The number of electrons in an atom can be determined by the _________ ___________.
Atomic number
The first energy level can hold up to _____ electrons.

The second energy can hold up to ___ electrons.

The outermost energy level is considered to be full if it contains ___ electrons.
2
8
8
The electrons in the outermost energy level of an atom are called ___________ electrons.
valence
The joining of atoms to form new substances is called ____________ ___________.
chemical bonding
Most atoms form bonds using only the electronsin their ___________ energy level.
outermost
A force of attraction that holds two atoms together is called a ___________ _________.
chemical bond
1- Li, Na, _
2- Be, __, Ca
3- _, Al
4- _, Si
5- N, _
6- -, S
7- F, __
K
Mg
B
C
P
O
Cl