posted by Taylor Beach
A neutral atom of an element has 2 electrons with n=1, 8 electrons with n=2, and 5 electrons with n=3. Write its electron configuration and find:
A) atomic number B) total number of s electrons
C) total number p electrons
D) total number of protons
1s2 2s2 2p6 3s2 3p3
Count the electrons; that's the atomic numbr and you didn't need to write the electron configuration to do that. You can count from the problem.
C. Count the p.
D.total protons must = total electrons
E. Can you find them?