Question

an element has 3 valence electron in its outermost third shell name the element is

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Answer 1

Answer:

hy

Explanation:

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Electrons

Atomic Number Element Energy Levels or "shells"

2 Helium (He) 2

3 Lithium (Li) 2

4 Beryllium (Be) 2

5 Boron (B) 2

37 more rows

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Answer 2

The element is known as Aluminium.

• The valence electrons are the number of electrons that are present in the outward shell or outermost orbital that is accountable for the distinct chemical nature of an element.
• The shell represents the orbital path of electrons and they are accommodated here.
• Aluminium is an element that has a cumulative number of electrons 13 and it belongs to group 13 in the periodic table.
• It has 3 electrons in its outermost shell. Therefore it has valency +3.
• Aluminium has a total of 3 electronic shells where 3rd shell is the outermost shell.
• The electronic configuration of Aluminium is given as Al - [2,8,3].
• Hence, aluminium is an element retaining 3 valence electrons in its third shell.