1.

The symbol used for oxygen is ‘O’. There are 8 protons and 8 neutrons in its nucleus. From this determine the atomic number (Z) and mass number (A) of oxygen and arrange these in a conventional symbol.

Answer»

ANSWER:

the atomic mass of oxygen is 16. it's atomic number is 8.

Explanation:

no.of protons = no.of electrons=atomic no.(Z)

the mass of an ATOM is concernetrated at its NUCLEUS so the TOTAL no.of protons and neutrons is it's atomic mass.

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