Question

find
out the mass number of oxygen
and sulphur atom.​

Answer 1

Answer:

Mass no. of O and S are 15.999 and 32.065 respectively .

Answer 2

(a) To find the mass number of Oxygen:

Number of protons = $\large\mathcal\blue{8}$

Number of neutrons = $\large\mathcal\blue{8}$

Atomic number = $\large\mathcal\blue{8}$

Atomic mass number = Number of protons + number of neutrons = $\large\mathcal\blue{8+8=16}$

Therefore, mass number of oxygen = $\large\mathcal\blue{16}$

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(b) To find the mass number of Sulphur:

Number of protons = $\large\mathcal\blue{16}$

Number of neutrons = $\large\mathcal\blue{16}$

Atomic number = $\large\mathcal\blue{16}$

Atomic mass number = Number of protons + number of neutrons = $\large\mathcal\blue{16+16=32}$