The atomic number of Beryllium is 4, the atomic number of fluorine is 9, atomic number of sulfur is 16 and the atomic number of chlorine is 17.
What is atomic number?
The atomic number is defined as the number of protons in the nucleus of an atom or the number of electrons revolving around the nucleus in orbits or shell.
So we can conclude that he atomic number of Beryllium is 4, the atomic number of fluorine is 9, atomic number of sulfur is 16 and the atomic number of chlorine is 17.
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