An element whose atoms have three valance electrons, the example of such element is?

Silicon
Copper
Germanium
Aluminum

LohaHridoy

4 views

2025-01-04 04:42

1 Answers

AhmedNazir

Option 4 : Aluminum

Electronic configuration of elements:

Si (14): 1s² 2s² 2p⁶ 3s⁴(valence electrons 4)

Cu (29): 1s² 2s² 2p⁶ 3s² 3p⁶ 4s¹ 3d¹⁰ (valence electrons 1)

Ge (32): 1s² 2s² 2p⁶ 3s² 3p⁶ 3d¹⁰4s² 4p² (valence electrons 4)

Al (13): 1s² 2s² 2p⁶ 3s³(valence electrons 3)

4 views Answered 2022-09-04 04:29

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