Answer:
The answer to the question is option <u>D</u>
Answer:
The number of outer shell electrons determines the group number of the element. The number of occupied principle quantum shells (energy levels) determines the period of the element. The proton number determines the element itself and its position.
Explanation:
A lot of cesium is how much cesium you would get and stuff
Answer:
For example, most samples of the elements hydrogen, oxygen, and nitrogen are composed of molecules that contain two atoms each (called diatomic molecules) and thus have the molecular formulas H2, O2, and N2, respectively
Explanation:
Brainiest pls
