violetbuisnessyt
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Talking about the periodic table.
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Identify the group or period that matches each description.
a. Elements with 6 energy levels
b. Elements with 2 valence electrons

Respuesta :

tiafathihah23

Answer:

a. period 6

b. group 2

Explanation:

a.The atoms in the first period have electrons in 1 energy level. The atoms in the second period have electrons in 2 energy levels. The atoms in the third period have electrons in 3 energy levels. The atoms in the fourth period have electrons in 4 energy levels and same goes with 6 energy levels

b. 1 valence electron= group 1

2 v.e = group 2

3 v.e = (3+10) = group 13

elizabethlol11
A and b i did the question and got it correct

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