an ion compound contains an unknown ion x and has the formula x3n2.Ion x contains 10 electrons.Write down the chemical symbol of x

Md Ariful Islam

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Solution:

X3N2 → 3X2+ + 2N3-

Number of electrons in X2+ ion = 10

Therefore,

Number of electrons in X = 10 + 2 = 12

Number of electrons in X = Number of protons in X = Atomic number of X = 12

Thus, X2+ = Mg2+ - magnesium ion

X = Mg

Answer: Mg

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