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symbols can be written whereas symbols nbsp are...

Question:
Symbols can be written, whereas symbols are not acceptable. Answer briefly.

Answer:

The general convention of representing an element along with its atomic mass (A) and atomic number (Z) is Atomic number of an element is fixed.However,mass number is not fixed as it depends upon the isotope taken.Hence it is essential to indicate mass number

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Question:
Symbols can be written, whereas symbols are not acceptable. Answer briefly.

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Question: Symbols can be written, whereas symbols are not acceptable. Answer briefly.

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Question:
Symbols can be written, whereas symbols are not acceptable. Answer briefly.