Question

number of protons neutrons and electrons in the four specimen A, B, C and D are respectively 6, 6, 6, 7, 7, 7; 6, 8, 6; and 9, 10, 10. Tell which of them are (a) isotopes (b) isobars. Why?

Answer 1

⇔Isotopes are elements that possess same atomic number (Number of protons or electrons) but different mass number (Number of protons or electrons + Number of neutrons).

⇔So, from the given set of elements, we can note that A and C have the same atomic number i.e same number of protons and electrons. Hence, A and C are isotopes.

⇔Isobars are elements that possess the same mass number (Number of protons or electrons + Number of neutrons), but different atomic number (Number of protons or electrons).

⇔So, from the given set of elements, we can note that B and C have the same mass number or atomic weight  i.e same number of protons (or)electrons + neutrons. Hence, B and C are isobars.

:)

Answer 2

Answer:

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Explanation:

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