the history of the modern periodic table 3 Flashcards
1
Q
the periodic table has ____ vertical columns
A
18
2
Q
the elements in a group are also identifies into
A
2 categories
3
Q
family a
A
representative elements
4
Q
group lA
A
alkali metal
5
Q
group llA
A
alkaline earth metals
6
Q
group lllA
A
aluminum group/ boron family
7
Q
group lVA
A
carbon family
8
Q
group VA
A
nitrogen family
9
Q
group VlA
A
oxygen family or chalcogens
10
Q
group VllA
A
halogens
