Question

Which of these elements has the same number of valence electrons as neon Ne?a. carbon (C). b. phosphorus (P). c. nitrogen (N). d. oxygen (O)

Answer 1

C. Nitrogen (N) has the same number of valence electrons as neon Ne. Both elements have a total of 8 valence electrons in their outermost energy level.

Step-by-step explanation:

The element neon has the atomic number 10, which means it has 10 electrons in its outermost energy level. The element that has the same number of valence electrons as neon is therefore also the element that has the atomic number 10, which is neon itself. The other elements listed (carbon, phosphorus, nitrogen, and oxygen) have atomic numbers 6, 15, 7, and 8 respectively, so they do not have the same number of valence electrons as neon.