Consider the following elements: 20 Ca, 8 O, 18 Ar, 16 S, 4 Be, 2 He Which of the above elements would you expect to be: (i) Very stable? (ii) In group 2 of the periodic table? (iii) In group 16 of the periodic table?

Question

Philoid · Accepted Answer

(i) Argon and Hellium are the most stable among these all.

(ii) Calcium and Beryllium have 2 valence electrons so they belong to 2^nd group.

(iii) Oxygen and Sulphar have 6 valence electrons so the belong to 16 group.

Consider the following elements:20Ca, 8O, 18Ar, 16S, 4Be, 2HeWhich of the above elements would you expect to be:(i) Very stable?(ii) In group 2 of the periodic table?(iii) In group 16 of the periodic table?

Consider the following elements:
₂₀Ca, ₈O, ₁₈Ar, ₁₆S, ₄Be, ₂He

Which of the above elements would you expect to be:

(i) Very stable?

(ii) In group 2 of the periodic table?

(iii) In group 16 of the periodic table?