Chemistry

Precious Francis

3 October, 14:04

The number of pretons in an atom is that element's

6.

The mber of protons and neutrons in an atom is that tem's

member

7

The abity of mater o to be drown into a thin wire is called

B.

The bality of material to be pounded into thin sheets is called

9

The elements in groups 3 through 12 are called the

10 The elements in group are called the

The elements in group 2 ere called the

12. The elemente ngros 18 are called the

the element group 17 ere talled the

are the most reactive metals.

ere the most reactive nonmetals

are very unreactive

react very violently with water