Question

) Calcium, Magnesium and Strontium are kept in the same group of periodic table on

the basis of its chemical properties, Write those characteristics and also write which

element has the biggest size and why​

Answer 1

Answer:

All 3 elements Calcium, Magnesium and Strontium are kept in the same group of periodic table on the basis of its chemical properties,

Because-->

1. All three of them are metals.

2. They have the same valency.

3. There Valence electrons is same.

Strontium will have higher atomic size because its atomic size increases down the group because a new shell is added down the group and the distance between Nucleus and electron will increase.

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