Question

On your graph, the data points between the black squares are data for elements with atomic numbers 3 through 9. Locate these elements on your periodic table. What term or description would you use to identify these elements with respect to the periodic table?

Answer 1

Elements with atomic numbers 3 through 9 include lithium (Li) to fluorine (F) which are alkali, alkaline earth metals, and non-metals found in the first two periods of the periodic table.

Step-by-step explanation:

The elements with atomic numbers 3 through 9 on the periodic table are: lithium (Li), beryllium (Be), boron (B), carbon (C), nitrogen (N), oxygen (O), and fluorine (F). These elements are part of the first two rows, or periods, and they belong to different chemical groups. Lithium and beryllium are found in the second period and are part of the alkali and alkaline earth metals, respectively, while boron through fluorine are non-metals from the second and third groups of the same period. These elements are categorized based on shared chemical and physical properties that recur periodically as the atomic numbers increase.