A. It must be testable in order to be found true or false.
Atomic Number of Zinc is 30, means it contains 30 electrons. So, its electronic configuration is as follow,
1s², 2s², 2p⁶, 3s², 3p⁶, 4s², 3d¹⁰
As,
1s², 2s², 2p⁶, 3s², 3p⁶ = Argon
So,
Electronic configuration of Zinc in shorthand notation is as follow,
[Ar] 4s², 3d¹⁰
<span>I think that the effective nuclear charge increases as you go up a group and across a period.
so maybe Rh, K, Ti, Mg, P
I hope I helped :)</span>
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The name of the supercontinent was PANGEA. There are two ancient supercontinent that were seperated by thethys sea and now formed or emmerge and now called Pangeae supercontinent. Laurasia and Gondwana was the two supercontinent that formed part of the Pangaea supercontinent. So the answer in this question is B. Pangea.
