Question

Q3. Observe the electronic structure of element 'X' given below and identify it.​

Answer 1

Answer:

a) 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