Unknown element W has 2 valence electrons Unknown element X has 7 valence electrons? Which formula below shows the most likely outcome when elements W and X react?

A) WX

B) WX2

C) W2X

D) W2X2

Group of answer choices

Option B) WX2

Explanation:

Data obtained from the question include:

Valency of W = 2

Valency of X = 7

From the data obtained from the question,

W has 2 electrons in it's outermost shell and can easily lose them to form bond.

X has 7 electrons in it's outermost shell and can not lose them to form bond. Instead it will accept electron to form bond.

When W and X combines, the outcome is given below:

1. W loses it's 2 valency to form W ion (W^2+)

W —> W^2+ + 2e-

2. X receives the 2 electrons from W to X ion (X^-) as shown below:

2X + 2e- —> 2X^-

Combining both equations together, we obtained:

W + 2X + 2e- —> W^2+ + 2X^- + 2e-

Eliminate 2e- from both side

W + 2X —> W^2+ + 2X^- —> WX2

Therefore,

W + 2X + —> WX2

c

explanation:

i believe the answer is c and this is only worth 10 points you might wanna change it

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