Answer:
An atom becomes anion when it gains or loses electrons. The ions that are formed when an atom loses electrons are positively charged because they have more protons in the nucleus than electrons in the electron cloud.
Explanation:
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I think the answer is B, the metal loses valence electrons to the nonmetal.
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Answer:
The right choice is:
B. 21, 21, 53.
Explanation:
Atomic Number = Number of electrons = Number of protons
So, the No. of protons (A) = Number of electrons =21
Atomic Number (B) = Number of electrons =21
Mass number (C) = Number of electrons + Number of neutrons = 21 + 32 = 53
<u> </u><u>So, the right choice is: </u>
B. 21, 21, 53.