Question

guys help me 3 marks question

Q.what is isotopes? explain by giving an example? ​

Answer 1

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Isotopes are atoms with the same number of protons but that have a different number of neutrons. Since the atomic number is equal to the number of protons and the atomic mass is the sum of protons and neutrons, we can also say that isotopes are elements with the same atomic number but different mass numbers.

carbon-12, carbon-13, and carbon-14 are three isotopes of the element carbon with mass numbers 12, 13, and 14, respectively.

Answer 2

Isotopes are atoms of the same element having same atomic number but different mass numbers .

example:All chlorine atoms contains 17 protons but some chlorine atoms contains 18 neutron whereas the other one contain 20 neutron. therefore Chlorine has two isotopes of mass number 35 and 37.