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jalaynay27

Answer:

B. Three

Explanation:

The three dots that are surrounding the nucleus are electrons.

Explanation:

According to the diagram, the atom has 3 electrons.

Electronic configuration =

1s² 2s¹

  1. Element = Lithium
  2. Symbol = Li
  3. Period = 2
  4. Group = 1 (Alkali metal)
  5. valency = 1

Therefore,

Option B is correct✔