Question

Elements P, Q and R have atomic numbers 9, 10 and 13 respectively. Which
one is chemically inert?
ОА. Р
ОВ. Q
O C.R
OD. none of the above
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Answer 1

the answer is option B)10

the element is Q-neon(Ne)-10

Hope it helps u☺☺

Answer 2

Answer:

b was the right answer

WHICH MATTER COME IN 8 GROUP ALL ARE INERT

inert meaning:- which do not exist in free state