Question

to draw a lewis dot model you have to know. select all correct options. the number of energy levels an atom has. the number of valence electrons an atom has. the group an element is in. the period an element is in

Explanation:

Lewis dot models represent valence electrons of atoms. Knowing the number of valence electrons is crucial as dots in the model represent them. The group number of an element often indicates the number of valence electrons, so group information helps. The period is not directly relevant for drawing the basic Lewis - dot structure. The number of energy levels is not necessary to draw the Lewis dot model.

Answer:

B. the number of valence electrons an atom has, C. the group an element is in