In which row are the chemical elements in the order of increasing their atomic radius? 1) Na Mg Al.

In which row are the chemical elements in the order of increasing their atomic radius? 1) Na Mg Al. 2) Al Mg Na 3) K Na Li 4) Mg Be Ca

It is necessary to write the atomic radii of all groups according to the periodic table.

1. Na – 190 pm, Mg – 145 pm, Al – 118 pm; 190> 145> 118;

2. Al – 118 pm, Mg – 145 pm, Na – 190 pm; 118 <145 <190;

3. K – 243 pm, Na – 190 pm, Li – 167 pm; 243> 190> 167;

4. Mg – 145 pm, Be – 112 pm, Ca – 194 pm; 145> 112 <194.

Answer: in the second row, the chemical elements are arranged in order of increasing atomic radius.

pm – picometer, unit of measurement * 10 (-12 degrees).