10. Periodic Properties of the Elements

Which of the following represents the correct orbital diagram for a neutral vanadium atom (atomic number 23)?

How many subshells are present in the n = 4 shell of an atom?

Which of the following orbital diagrams for the 2p subshell of carbon (atomic number 6) represents a violation of Hund's rule?

The sulfur atom has 16 electrons. What is the correct electron configuration for sulfur?

Which element has the electron configuration 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2 4d10 5p6?

What is the total number of partially occupied 2p orbitals in a nitrogen atom (atomic number 7) in its ground state?

Which sublevel is filled immediately after the 5s sublevel in the order of electron filling?

Which of the following represents the complete ground state electron configuration for a scandium (Sc) atom?

Which of the following represents the correct ground-state electron configuration for a neutral carbon atom?

Given the electron configuration of iron (Fe): [Ar] 4s2 3d6, how many core electrons and valence electrons does an iron atom have?

Which of the following represents the complete ground state electron configuration for a nickel (Ni) atom?

How many electrons can be accommodated in the third energy level (n = 3) of an atom?

Which of the following correctly represents the orbital diagram for arsenic (As, atomic number 33)?

Which atom in the ground state has a stable (completely filled) electron configuration?