Question

An ion has 12 protons, 14 neutrons, and 10 electrons. the symbol for the ion is

Answer 1

Normal elements have equal proton and neutrons

Which is there atomic number

And no.of proton plus no. of electrons = mass number

Answer 2

Answer: The ion formed is $_{12}^{26}\textrm{Mg}^{2+}$

Explanation:

An ion is formed when an atom looses or gains electron.

• When an atom looses electrons, it will form a positive ion known as cation.
• When an atom gains electrons, it will form a negative ion known as anion.

Atomic number is defined as the number of protons or electrons that are present in a neutral atom.

Atomic number = number of protons = number of electrons

Atomic mass is defined as the sum of number of protons and neutrons that are present in an atom.

Atomic mass = Number of protons + Number of neutrons

The isotopic representation of an atom is: $_Z^A\textrm{X}$

where,

Z = Atomic number of the atom

A = Mass number of the atom

X = Symbol of the atom

We are given:

Number of protons = 12

Number of neutrons = 14

Atomic Mass = 12 + 14 = 26

Number of electrons = 10

As, the number of electrons is less than the number of protons, it forms positive ion

Hence, the ion formed is $_{12}^{26}\textrm{Mg}^{2+}$