Question

the electronic configuration of three element x y z are given below
x=2
y=2, 6
z=2, 8,2
​

Answer 1

Answer:

X=2 b)Y=2,6 c)Z=2,8,2

1s

2

1s

2

2s

2

2p

4

1s

2

2s

2

2p

6

3s

2

.

i) 'Y' belongs to the 2nd period. Because its electronic configuration ends with n=2

ii) 'Z' belongs to the 2nd group as its last electron enters into the second group of s-subshell.

iii)'X' belongs to 18th group.