Explain with example atomic number, mass number isotope and isobar
Answers
The atomic number (represented by the letter Z) of an element is the number of protons in the nucleus of each atom of that element. An atom can be classified as a particular element based solely on its atomic number. For example, any atom with an atomic number of 8 (its nucleus contains 8 protons) is an oxygen atom, and any atom with a different number of protons would be a different element.
The mass number (represented by the letter A) is defined as the total number of protons and neutrons in an atom.eg helium=4
isotopes: The atoms which posses same atomic number (the atoms same element) but different mass number are called Isotopes.
Ex: ₁H¹,₁H², ₁H³
These are the isotopes of Hydrogen.
The difference in mass number is due to different number of neutrons present in the nucleus.
Isobars: The atoms which posses different atomic number with same mass number are called Isobars.
Ex : ₁₈Ar⁴⁰,₂₀Ca⁴⁰.
atomic number The number of the protons present in the nucleus of an atom is called atomic number. ...
ii) Mass number is the number of protons and neutrons in the nucleus taken together
iii)isotopes = the element which have same atomic number example carbon isotopes
4 isobars the element which have same mass number example calcium sulphur chlorine
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