Respuesta :

joseaaronlara

Answer:

The answer to your question is:

Explanation:

1. Has 3 energy levels . If an element is in period three in the periodic table, it means that it has three energy levels.

a. F   only has 2 energy levels

b. Cl  Chlorine has three energy levels

c. Ar  Argon has three energy levels

d. Mn it has four energy levels

2. Found in group 7A

a. F  it is located in group seven

b. Cl  Chlorine is located in group seven

c. Ar  Argon is located in group VIII

d. Mn is located in group VB

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