Four elements P, Q, R and S have 1, 2, 3, and 7 electrons in
CHEMISTRY
POST UTME FUTO
Four elements P, Q, R and S have 1, 2, 3, and 7 electrons in their outermost shells, respectively. The element which is likely to be a metal is
- A) P
- B) Q
- C) R
- D) S
Correct Answer: B) Q
Explanation
A and B are both correct... And we know that metallic properties of a metals decrease across the period and increases down the group.. so 1 is an alkali metal which means it has more probability of being a metal.
Post an Explanation Or Report an Error
If you see any wrong question or answer, please leave a comment below and we'll take a look. If you doubt why the selected answer is correct or need additional more details? Please drop a comment or Contact us directly. Your email address will not be published. Required fields are marked *