what is the atom atomic number of element of period 3 and group 17 of the periodic table?
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Answered by
1
Answer:
Bromine*(Br) is the element
Answered by
2
Answer:
17
Explanation:
Chlorine is the element located in period 3, group 17 of the periodic table.
Symbol: Cl
Atomic mass: 35.453 u
Atomic number: 17
Electron configuration: [Ne] 3s²3p⁵
Electronegativity: 3.16
Van der Waals radius: 175 pm
Discoverer: Carl Wilhelm Scheele
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