lesson 11 Flashcards
1
Q
since __ are slightly conductive, they are called semiconductors
A
metalloids
2
Q
vertical columns are called groups, or __
A
families
3
Q
elements located in the same __ have their valence electrons in the same outermost energy level
A
series
4
Q
boron is in group 3A so it has __ valence electrons
A
3
5
Q
horizontal rows are called __ or series
A
periods
6
Q
the __ are a group of very reactive non metals, while __ gases are very inert non metals
A
halogens, noble
7
Q
sulfur in in group 6A, so it has __ valence electrons
A
6
8
Q
group 4A is also known as the __ family
A
carbon
9
Q
potassium is an example of an __ metal
A
alkali
10
Q
Ca is an example of an __ __ metal
A
alkali earth
