why do the isotopes of elements have different atomic mass short answer 9 class
Answers
Explanation:
Isotopes: 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, isotopes are elements with the same atomic number but different mass numbers.
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Answer:
Explanation:
Isotopes are atoms of any element having certain No. of Protons with +ve charge, Neutrons with no charge & Electrons with –ve charge
Each element is defined in the Periodic Table according to their Atomic No. & Mass No.
Atomic No. tells how many Protons are there in nucleus of an atom
Mass No. is the sum of Protons & Neutrons in the nucleus
All isotopes have same atomic no. so they have similar chemical properties since having same atomic no. but differently massive as they differ in mass no.
When No. of Protons and Neutrons is same, the isotopes are balanced and not subject to decay
But if No. of Protons and Neutrons are not same, the isotope is not balanced and may subject to decay so these are called as Radioactive Isotopes