IDNLearn.com: Your one-stop destination for reliable answers to diverse questions. Ask your questions and get detailed, reliable answers from our community of knowledgeable experts.

If an atom has 10 protons and electrons how many of the electrons will be valence electrons?


Sagot :

Answer:

8 of the electrons will be valence electrons

Explanation:

Answer:

8 valence electrons

Explanation:

We are given the atom has 10 electrons.

The first electron shell holds 2 electrons (maximum)

The second electron shell holds 8 electrons (maximum)

2+8=10

Therefore we would have 2 electrons in the first shell and 8 in the second.

Valence electrons are the outermost electron, and since the second shell is the outermost for the atom, it has 8 valence electrons.