Step-by-step explanation:
Alkali metals: Lithium, sodium, potassium, rubidium, cesium, and francium.
These metals tend to lose 1 electron.
Alkaline Earth Metals: Beryllium, magnesium, calcium, strontium, barium, and radium.
These metals tend to lose 2 electrons
----------------------
Elements like nitrogen, oxygen, and chlorine, tend to gain electrons. These are nonmetals
----------------------
According to the task:
Answer:
Beryllium loses 2 electrons
Chlorine gains 1 electron
Nitrogen gains 3 electrons
Oxigen gains 2 electrons
Aluminum loses 3 electrons
Sodium loses 1 electron