Question 25 pts
(03.01 MC)

The table shows the total number of electrons in Atom A and Atom B.

Atom Number of Electrons
A 10
B 12
Which statement is correct? (5 points)

Group of answer choices

A will give up two electrons to form bonds.

B will give up two electrons to form bonds.

Both A and B will be chemically unreactive.

Both A and B will gain electrons to become stable.

B has 12 electrons, it means that the electronic configuration of B is; 1s2 2s2 2p6 3s2. The implication of this is that B must be an element of group 2 since it has an outermost electron configuration of ns2.

The elements of group 2 form ionic bonds by loss of two electrons. This implies that B will form bonds by loss of two electrons.

Answer Link

andromache andromache · Answer 2 · 2021-12-30T13:00:21+01:00

The statement i.e. correct is B will give up two electrons to form bonds.

The following information should be considered:

B has 12 electrons, it means that the electronic configuration of B is; 1s2 2s2 2p6 3s2.
It represent that B must be an element of group 2 since it has an outermost electron configuration of ns2.
The elements of group 2 form ionic bonds by loss of two electrons.
This implies that B will form bonds by loss of two electrons.

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