3. An atom has an electron configuration of 1s2 2s2 2p6 3s2 How many valence electrons?
A. 2
B. 8
C. 4
D. 6
Share
3. An atom has an electron configuration of 1s2 2s2 2p6 3s2 How many valence electrons?
A. 2
B. 8
C. 4
D. 6
Sign Up to our social questions and Answers Engine to ask questions, answer people’s questions, and connect with other people.
Login to our social questions & Answers Engine to ask questions answer people’s questions & connect with other people.
Answer:
3. An atom has an electron configuration of 1s2 2s2 2p6 3s2 How many valence electrons?
A. 2
B. 8
C. 4
D. 6
Explanation:
How many valence electrons does 1s2 2s2 2p6 3s2 3p4 have?
If you only want to find valance electron in Sulphur atom, there is a very simple answer for you. Atomic no. of Sulphur is 16 hence its electronic configuration is 2,8,6 [1s2,2s2,2p6,3s2,3p4] as it has 6 electrons in its outermost shell so it has 6 valance electrons.