Electron Configuration Quiz

What principle states that no two electrons can have the same set of four quantum numbers?

• Hund's Rule

• Aufbau Principle

• Pauli Exclusion Principle

• Heisenberg Uncertainty Principle

Which principle is used to determine the order in which orbitals are filled?

• Heisenberg Uncertainty Principle

• Aufbau Principle

• Hund's Rule

• Pauli Exclusion Principle

Which rule explains why electrons fill degenerate orbitals one at a time before pairing up?

• Aufbau Principle

• Bohr's Model

• Hund's Rule

• Pauli Exclusion Principle

What is the electron configuration for carbon?

• 1s2 2s1 2p2

• 1s2 2s2 2p1

• 1s2 2s2 2p3

• 1s2 2s2 2p2

How is the electron configuration of sodium abbreviated using noble gases?

• [Ne] 3s1

• [Kr] 4s1

• [He] 2s2 2p6 3s1

• [Ar] 3s1

Which group of elements has a full outermost principal shell in their electron configuration?

• Alkali metals

• Transition metals

• Noble gases

• Halogens

Which block of the periodic table contains elements with their highest energy electrons in p orbitals?

• f block

• p block

• d block

• s block

What is the electron configuration for an element in the s block?

• nf14

• ns1 or ns2

• ns2 np6

• nd10

What is the electron configuration anomaly observed in chromium?

• 4s2 3d5

• 4s1 3d4

• 4s2 3d4

• 4s1 3d5

Which technique is used to confirm unexpected electron configurations experimentally?

• X-ray Crystallography

• Electrophoresis

• Chromatography

• Spectroscopy