Look at the bottom of the periodic table. There are two rows of elements separated from the others. Where do these elements fit in the structure of the table? Use the atomic numbers to help you decide.
Select the correct option from each drop-down menu to describe the location of these elements.
The first row of elements fits in period (6),(7),(8),(9), after the element (lanthanum (LA)),(radon (Rn)),(organesson(Og)),(beryllium (Be)). The second row of elements fits in period (6),(7),(8),(9), after the element (actinium (Ac)),(organesson(Og)),(radon (Rn)),(magnesium (Mg)).
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Look at the bottom of the periodic table. There are two rows of elements separated from the others....
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