Answered

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Which element has valence electrons in the fourth energy level?

A. Sodium
B. Carbon
C. Tin
D. Calcium

Sagot :

GinnyAnswer

Final answer:

Calcium has valence electrons in the fourth energy level.


Explanation:

Calcium has valence electrons in the fourth energy level. The electron configuration of calcium is [Ar]4s², indicating 2 valence electrons in the 4s subshell. Thus, calcium is the element with valence electrons in the fourth energy level.


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