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The electron configuration of an element is 1s22s2. How many valence electrons does the element have? 1 2 3 4
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The electron configuration of an element is 1s22s2. How many valence electrons does the element have?

1
2
3
4

User Zvonimir
by
3.5k points

1 Answer

10 votes

1s²2s²

#The total electron/proton is the power

2 + 2 = 4

Answer : 4

User Andrew Savetchuk
by
3.7k points
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