Question

PLEASE ANSWER

Arrange the following elements as per guidelines in bracket [4]

1. Ne , Ar , He , Kr [ Decreasing order of electron shells]

2. Cl , F , I , Br [ Increasing order of electron affinity]

3. Mg , Al , Si , Na [ Increasing order of ionisation potential]

4. Be , C , O , Li [ Decreasing order of electronegativity]​
answer please-

Answer 1

Answer:

1) Kr>Ar>Ne>He

2) I<Br<F<Cl

3)Na<Mg<Al<Si

4)O>C>Be>Li