Question

Which two atoms are Isotopes of each other?

24
OA si and 25mg
OB. 2 Mg and
oc 39 Mg and 22ME
OD. 7 Na and 25 Mg
13A
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Answer 1

`Mg_(12)^(24)` and
`Mg_(12)^(25)`

Step-by-step explanation:

Isotopes can be defined as the atom of an element that has the same number of protons but different number of neutrons. This ultimately implies that, the isotopes of an element have the same atomic number (number of protons) but different atomic mass (number of nucleons).

The isotope of an element is denoted by
`X_(Z)^(A)`

Where;

X is the symbol of the element.

A is the atomic mass or number of nucleons.

Z is the atomic number or number of protons.

Mathematically, the number of neutrons = A - Z

In this scenario, the two atoms which are isotopes of each other are
`Mg_(12)^(24)` and
`Mg_(12)^(25)` because they have the same atomic number (number of protons) but different atomic mass (number of nucleons).