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Complete the following table and answer the questions given below:
Study the data given below and answer the questions which follow:
In a sample of ethyl ethanoate (CH₃COOC₂H₅), the two oxygen atoms have identical numbers of electrons but differing numbers of neutrons. Which of the following provides the correct explanation for this?
In a sample of ethyl ethanoate (CH₃COOC₂H₅) the two oxygen atoms have the same number of electrons but different number of neutrons. Which of the following is the correct reason for it?
Distinguish between isotopes and isobars.
Two nuclei have different mass numbers A₁ and A₂. Are these nuclei necessarily the isotopes of the same element ? Explain.
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