Question

NEED ANSWER FAST!

The table compares the number of electrons in two unknown neutral atoms.


Comparison of Electrons
Atom Number of Electrons
A 2
D 10

Use this information to determine the number of valence electrons in the atoms. Which of the following correctly compares the stability of the two atoms?
Both are unreactive.
Both are highly reactive.
A is unreactive and D is reactive.
A is reactive and D is unreactive.

Answer 1

A). Both are unreactive

Step-by-step explanation:

Answer 2

Both are unreactive.

Step-by-step explanation:

Atom Number of Electrons

A 2

D 10

The two atoms A and D are very stable and unreactive.

Valence electrons the outermost shell electrons in a neutral atom.

The number of valence electrons in A is 2

The number of valence electrons in D is 8

The atoms are stable and unreactive because for A, its two electrons are in the k-shell in which the maximum number of electrons here is 2. It has a noble configuration which makes it stable.

For atom D, the outermost electrons are in the L-shell in which the maximum number of electrons is 8. This also makes it stable and unreactive.

Both atoms will be reluctant to lose or gain electrons.