Question

Explain with the help of examples:

[3]

a.) Atomic number and Mass number

b.) Isotopes and Isobar

c.) Anion and Cation​

Answer 1

Answer:

(A) Mass number: The number of protons and the number of neutrons determine an element's mass number: mass number = protons + neutrons.

Atomic number: it is the proton number.

(B) Isotopes: can be defined as the variants of chemical elements that possess the same number of protons and electrons, but a different number of neutrons. For example, carbon-14, carbon-13, and carbon-12 are all isotopes of carbon.

Isobars: are atoms (nuclides) of different chemical elements that have the same number of nucleons.

(C) Anion: An anion is negatively charged with more electrons than protons.

Cation: A cation is a positively charged ion with fewer electrons than protons.