Question

Consider the table given below and answer the following questions.
Groups
Periods
1
2
18
13
14
15
16
17
II
a
j
b
e
g
h
k
IV
с
f
i
1
V
d
Name the most reactive metal
How
many shells does d' have ?
iii) Name the element(s) having valency 2.
:) How
How many valence electrons does 'j' have ?
The atom of which element is bigger in size e or h
​

Answer 1

Answer:

MOST REACTIVE METAL - POTASSIUM AND SODIUM

SHELS D HAVE - 10 ELECTRONS and 5 orbitals

VALENCY 2 - HELIUM