markslamborghini markslamborghini

14-02-2021
Chemistry

contestada

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

1
2
3
4

Respuesta :

Khasandra Khasandra

14-02-2021

1s²2s²

#The total electron/proton is the power

2 + 2 = 4

Answer : 4

Answer Link

nmcollett12 nmcollett12

06-10-2021

Answer:

Its 4, pls mark as brainliest

Explanation:

Answer Link

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