Question

name : 2 element having a single electron in outermost sheel. 2 elements having two electron in outermost sheel. 2 elements with filled outermost sheel.​

Answer 1

Answer:

single electron: Hydrogen, Lithium

two electrons: Magnesium, Calcium

Three electrons: Boron, Aluminium

Answer 2

Answer:

2 elements having a single electron in the outermost shell- Sodium(2.8.1) & Lithium(2.1)

2 elements having 2 electrons in the outermost shell- Magnesium (2.8.2) & Berillium(2.2)

2 elements with filled outermost shell- Neon(2.8) & Argon(2.8.8)