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In Chemistry / High School | 2014-11-26

Atoms of which two elements in the ground state contain the same number of valence electrons?

A. Al & Si
B. Al & B
C. Al & Zn
D. Al & Ge

Asked by karlaalejandra9

Answer (2)

B. Valence electrons in an atom correspond to group number. So, if two elements are in the same group they have the same amount of atoms in the outer shell.

Answered by dlpeckham | 2024-06-10

The two elements that contain the same number of valence electrons are Aluminum (Al) and Boron (B), as both belong to Group 13 of the periodic table with 3 valence electrons. Therefore, the correct answer is B. Al & B.
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Answered by dlpeckham | 2024-12-26

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