Question

An element ‘X’ contains 7 electrons in ‘L’ shell as valence electrons:


(a) What is the atomic number of ‘X’?

(b) Identify whether ‘X’ is a metal or a non-metal.​

Answer 1

Answer:

1) atomic no. 16

2) non metal x is sulfur

Answer 2

Answer:

1) Atomic number=9

2)it is non metal because it accepts electron