The atoms of four elements are represented as 20Q, 16R, 10S and 8T Which of the elements would be unreactive?

a

Q

b

R

c

S

d

T

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Correct Option
c

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Discussions (11)

Nnenna58
2 years ago

Based on the atomic numbers you provided, 20Q would be an unreactive element. This is because it has a full outer shell, meaning it has no reason to form bonds with other atoms. The other three elements - 16R, 10S and 8T - have incomplete outer shells, so they will be reactive and likely form bonds with other atoms. Does this explanation help? If you're curious, this concept is called the octet rule, and it's an important concept in chemistry.

Stock
10 years ago

S has its outermost shell,completely filled and can't react.Ans=C.

does that means any element which outmost shell is filled is unreactive

Element320
10 years ago

C is d right ans (noble gases)

Myschool Paul
10 years ago

Thanks for your contributions, corrections have been made.

olamilekansmart
1 week ago

c is the correct answer

Goddyy
10 years ago

Answer definately C

Mi_zzzy
2 years ago

C

pelumiadeemi
3 years ago

Ans:C.S

S is one of the elements in group 0 (i.e Noble or rare gases that have no bonding electrons in the outermost shell).

LollyP123
1 month ago

the answer is c

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