The diagrams above show different elements found on the periodic table. Out of these elements, and belong to the same group because they have the same number of . The most reactive element out of these is because it has and if found in group .
A Student is studying the ways different elements are similar to one another. Diagrams of atoms from two different elements are shown below.
Based on these diagrams, which statements are true about these elements?
Both elements are in the same period
Both elements are in the same group
Both elements have the same reactivity rate
The second element is more reactive than the first element
Both elements are metals
Both elements are non-metals