16.
Below is a block from the periodic table.
IV
A
6
2
C
4
12.01115
The number 12.01115 is the atomic _________________ of the element. The
2
numbers 4 represent the e _______________ c _______________ of the
element. There are (two) (four) electrons in the K shell and (two) (four) electrons
in the L shell. The number 6 in the block is the atomic ____________ of the
element. Each carbon atom has (six)(twelve) protons. The letter C is the
____________ for the element carbon. IV A is the ____________ .
17.
If an element's atomic number is 18 and its atomic weight is 40, the number of
neutrons in each atom is _______________ .
18.
The valence of an element is a measure of its c _______________ power.
Valence is the number of e _______________ that an atom must
g _______________ , l
, or sh _______________ to have a
full or stable outer electron _______________ .
19.
An ion is any _______________ atom or group of _______________ . It has
g _______________ or l _______________ at least one electron.
20.
A cation is an ion with a (positive) (negative) charge.
21.
An anion is an ion with a (positive) (negative) charge.
22.
A radical is a charged _______________ of atoms that goes through many
reactions without being _______________ .
23.
According to the octet rule, the outer electron shell of an atom "prefers" to have
_______________ electrons.
MD0803
1-35