Question

How many dots belong in the electron dot diagram of a boron atom

Answer 1

3 dots.

Step-by-step explanation:

The answer is 3 dots. We can use boron's position within the periodic table to help us figure this out. When looking at the periodic table, we see that boron is in group 3. The group number corresponds to the number of valence electrons that an element has. Therefore, boron has 3 valence electrons and will need to show all of these 3 electrons in its Lewis dot diagram.

Answer 2

Boron is in the third group, so it has 3 valence electrons. Therefore, it has 3 valence electrons.