Question

in mg²⁺, the number of electrons is ____. enter the answer check it

Explanation:

Step1: Determine the atomic number of Mg

The atomic number of Mg (magnesium) is \(12\). For a neutral atom, the number of electrons equals the atomic number. So, a neutral Mg atom has \(12\) electrons.

Step2: Analyze the charge of \(Mg^{2 +}\)

The \(+ 2\) charge on \(Mg^{2+}\) indicates that the ion has lost \(2\) electrons.

Step3: Calculate the number of electrons in \(Mg^{2+}\)

We use the formula: Number of electrons in ion \(=\) Number of electrons in neutral atom\(-\) Positive charge. So, the number of electrons in \(Mg^{2+}\) is \(12 - 2=10\).

Answer:

\(10\)