Question

An element has eleven protons and twelve neutrons in its nucleus. There are ten electrons present in it.

a. Is it an atom or an ion? Justify your answer.

b. If it is an ion, will it be a cation or an anion? Give a reason for your answer.

c. Is it a metal or a non-metal?

d. Name its valence shell and the number of valence electrons present in it.



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Answer 1

Answer:

here is ur answer mate

A) it's a ion because the element has lost one electron because in a atom number of electrons and protons are equal . it has loosed it's one electron to complete it's valence shell .

B) As it has lost it's one electron to complete it's valence shell it is carrying positive charge on it which means it's cation .

C) we know that those elements which lose election to complete it's shell are metals .

D) the electronic configuration of the element before loosing :

number of electrons= 11

electronic configuration = k L M

2 8 1

it's valence shell is M and valence electron 1

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