Question

What do isotopes of a given element have?

Answer 1

Hint: Isotopes are those species which consists of a greater number of the neutral particles as compared to the positively charged particles and both these particles are present inside the nucleus of an atom. Now using this you can easily answer the given statement accordingly.

Complete answer:
First of all, let’s discuss what an atom is. An atom is the smallest particle of an element and it consists of a large solid mass in its center known as the nucleus of the atom.
The nucleus of the atom consists of the positively charged particles i.e. the protons and the neutral particles known as the protons. Outside the nucleus are the negatively charged particles i.e. electrons which keep on revolving around the nucleus in fixed circular orbits.
Protons tells us about the atomic number of the atom i.e. Z and the sum total of the protons and the neutrons gives the mass number i.e. A of the atom.
Now considering the statement as;
Isotopes are the substances may be elements or the compounds which have the same atomic number but different mass number.
In simple words, we can say that they have the same number of the protons inside the nucleus but different numbers of the neutrons present inside the nucleus.
Hence, isotopes of a given element have both the positively charged particles as well as the neutral particles but the number of neutral particles is more than the positively charged particles.

Note:
Don’t get confused in the isotopes and isotones. Isotopes are those species which have the same number of protons but different numbers of neutrons whereas on the contrary isotones are the species which have the same number of neutrons but different numbers of protons.