1 point
4. The valence shell electronic
configuration is 352, 3p5 hence
sulphur belongs to group
14
15
16
17
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It's an element, so it has the same number of protons. Now you have to look in the periodic table for element number 17, which is Cl. With an electron configuration of 1s2,2s2,2p6,3s2,3p5 or[Ne] 3s2 3p5, there are a total of 17 electrons so the atomic number is 17 and the element is chlorine.
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