Question

Name an element which has the same number of electrons in its first and second shell
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Answer 1

Answer:

Berillum

Explanation:

Berrylium has atomic number 4 so it has 2 elements in it's first shell and two in it's second shell

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Answer 2

Explanation:

:)

Since the number of electrons in the first and second shell are the same, thus the first shell is filled to its maximum limit i.e. 2, and the remaining 2 electrons are occupying the second shell. This element therefore has 4 electrons, which is Helium.