Solutions? 5) Choose the element with the most metallic character A) Be B) Mg C)

Question

Solutions? 5) Choose the element with the most metallic character A) Be B) Mg C) Ca D) Sr 6) (T/F) When a bromine atom Br gains an electron and becomes a bromine ion Br, the bromine ion has a larger atomic radius than the bromine atom A) True B) False 7) Which of these elements has the highest electronegativity value. A) oxygen, O B) iodine, I C) lithium, Li D) selenium, Se 8) Which group contains only p-block elements? A) N, S, Br B) Mn, Cu, Ag C) K, Mg, Ba D) Ce, Pr, Nd 9) Which group contains only s-block elements? A) N, S, Br B) Mn, Cu, Ag C) K, Mg, Ba D) Ce, Pr, Nd

Explanation / Answer

5)
They are all in the same group
The metallic character increases as we move down a group
So, Sr is most metallic
Answer: D

6)
Extra electron is added while number of proton is not changing
So, size will increase due to electron electron repulsion
Answer: True

I am allowed to answer only 1 question at a time

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