what is the atomic number of the element located in group 16, period 2 of the periodic table?

The atomic number of the element in Group 16, Period 2 of the Periodic Table is 8 and the element is oxygen. A horizontal row in the periodic table is called a period. There are only two elements in Period 1: hydrogen and helium. Period 2 has eight elements. Based on the periodic table chart (see below), we can see that the atomic number of the element in the 16th group of the 2nd cycle of the periodic table is 8, which corresponds to the element oxygen.

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