Question

1. The subshell electronic configuration of an
element X is [Ar]3d84s2.
a) How many shells are there in an atom of this ele-
ment?
b) The last electron filling occurs in which sub-
shell?
c) Find the group number of this element.​

Answer 1

Answer:

a 4

b goes to s orbital

Explanation:

1B of transition elements