Question

1 2 13 14 15 16 17 18
H He
A B
C D E F
Name the following:
I. the most metallic element
II. the smallest atom
III the atom with valency 3
IV. the divalent atom
​

Answer 1

Answer:

1 Francium

2 Helium

3 Triatomic

4 An atom, ion, or elements with a valence of two, is called divalent. Examples for divalent atoms are Oxygen, Magnesium, Sulphur, etc