Question

Class X chemistry
Arrange the following as per the instruction given in brackets :
1. He, Ar, Ne [ increasing order of number of electron shells]

2. Na, Li, K[ increasing ionisation energy]

3. F,Cl, Br[ inreasing electro negativity.]

4. Na,K,Li( inreasing atomic size]

Answer 1

very good question. Thanks for asking it .

1. He, Ar, Ne [ increasing order of number of electron shells]

He< Ne< Ar

2. Na, Li, K[ increasing ionization energy]
K<Na<Li

3. F,Cl, Br[ increasing electro negativity.]
Br<Cl<F

4. Na,K,Li( increasing atomic size]
Li<Na<K

Answer 2

1) he, ar, Ne
2)K, Na, Li
3)Br, Cl, F
4)Li, Na, K