Question

explain with examples
a. atomic no.
b. isotopes
c. isobars

Answer 1

the number of protons that a chemical element has in its centre (nucleus)

atoms of different elements of different masses with different atomic number is known as isobars

atoms which have same number of protons but have different number of neutrons is known as isotopes

Answer 2

Answer:

The number of protons determines an element's atomic number (Z) and distinguishes one element from another. For example, carbon's atomic number (Z) is 6 because it has 6 protons. The number of neutrons can vary to produce isotopes, which are atoms of the same element that have different numbers of neutrons

Isotopes: Isotopes are the different element having same atomic number but different mass number. Isobars: Isobars are the same elements having different atomic number but same mass number. ... Example, atomic number of sodium is 11.