Question

explain with example
(I) atomic number (ii) Mass number (iii)isotopes and(iv) isobars​

Answer 1

Explanation:

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Andaz Aisa Rakho Kee Koi Andaz Na

Laga Pae

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i) Atomic number is the total number of protons present in the nucleus of an atom. It is also equal to the number of electrons for a neutral atom. Example, atomic number of sodium is 11.

ii) Mass number is the number of protons and neutrons in the nucleus taken together. For example, mass number of sodium is 23 g/mol.

iii) Isotopes are elements with the same atomic number but different mass numbers. Example, hydrogen has 3 isotopes - protium (1H1), deuterium (2H1) and tritium (3H1).

iv) Isobars are elemnts which have different atomic numbers but the same mass number. They are different chemical elements. Example, iron and nickel, both have mass number 58, whereas atomic numbers are different.

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Andaz Aisa Rakho Kee Koi Andaz Na

Laga Pae

○˜”*°• ●♡●♡ѕωαgвσу♡●♡● •°*”˜○

Answer 2

Answer:

I) Atomic number--It represent the number of proton in an atom it is denoted by the simple z.

ii)Mass number--- It is the sum of number of protons and neutrons present in the nucleus of an atom it is not by the symbol A.

iii) isotopes---isotopes are atoms of the same element having same atomic number but different mass numbers.

iv) isobars---isobars are the atoms of different elements having same mass number but different atomic numbers.

Explanation:

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