if a neutral aluminum atom (al, Z = 13) becomes al + ¹³ it means that this A) lost 1 electron B) lost 3 electrons C)

Question

if a neutral aluminum atom (al, Z = 13) becomes al + ¹³ it means that this

A) lost 1 electron
B) lost 3 electrons
C) gained 1 electron
D) gained 3 electrons

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RobertKer 1 month 2021-08-12T13:47:18+00:00 1 Answers 1 views 0

Answers ( )

    0
    2021-08-12T13:48:57+00:00

    Answer:

    B) lost 3 electrons

    Explanation:

    I assume you mean Al⁺³.  That means the atom loses 3 electrons.  Electrons have a negative charge, so losing them gives the ion an overall positive charge.

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Giải phương trình 1 ẩn: x + 2 - 2(x + 1) = -x . Hỏi x = ? ( )