i will mark the first answer
as brainliest 4. The subshell electronic configuration of an
element X is [Ar]3d84s2.
a. How many shells are there in an atom of this ele-
ment?
Answers
Answered by
2
Answer:KLM
286
(a) Since, it has 6 valence electrons, it belongs to group no. 16.
(b) It has 3 Valence shells, so it belongs to period no 3.
(c) The number of valence electron is 6.
(d) The valency of E is 2 because it requires 2 electrons to achieve its stability .
(e) It is a non-metal.
Explanation:
Similar questions