The number of electrons , protons , and neutrons in 4 atoms A ,B ,C ,D are respectively 7,7,7 ; 6,6,6 ; 10,9, 10 ; 6,6,8 . give symbolic representation of each atom and identify the pair of isotopes and isobars from these
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The number of electrons , protons , and neutrons in 4 atoms A ,B ,C ,D are respectively 7,7,7 ; 6,6,6 ; 10,9, 10 ; 6,6,8 . give symbolic representation of each atom and identify the pair of isotopes and isobars from these
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Isotopes means elements having same atomic number.
So,
B and D are the Isotopes because both have 6 number of proton which is equal to the atomic number.
Isobars means elements having same atomic mass.
So,
A and D are Isobars because both have same number of atomic mass.
Atomic Mass = Number of proton + Number of Neutron.
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Answer:
A, C
are isotopes;B, C are isobars