Question

For an element X, it is given that Atomic number = 17 and Mass number = 35. (i) Write the electronic configuration of the element X.
​

Answer 1

Electronic configuration of X

K L M

2 8 7

Valency of X=1

Valency of Y=3

Hence Compound=X(3)Y

Answer 2

Answer:

electronic configuration of the element X is 2,8,7