Question

Beryllium, the first element in group 2, has an atomic number of 4. The second element in this group has an atomic number of.

Answer 1

12.

Step-by-step explanation:

Beryllium is in Group 2 (Column 2) with the atomic number 4.

The atomic number to the next element in the group would be right below it, Magnesium (Mg). Magnesium has an atomic number 12.

The atomic number is the small number on the top left corner of the square of the element.