Question

Q14) The position of some elements A,B,C,D,E,F and G in the modern periodic table is
given as under:
group :. 16. 17. 18.
period

1. A
2. B. C. D
3 E. F. G

a) In which group are inert elements (Noble gases) placed?
b) Which element would have chemical properties similar to C?
c) How many shells would A have
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Answer 1

Answer:

a) The inert gases are placed in group 18

b) Silicon would have the chemical properties similar to C(carbon)

c) A is not any element.

If u r talking about Ar(argon) There are 3 shells in Ar.

extra info - 18 electons are there in an argon atom.(two electrons in shell one, eight in shell two, and eight in shell three.)