How many electrons can an s orbital hold?

• 14 electrons

• 10 electrons

• 6 electrons

• 2 electrons

How many electrons can a set of p orbitals hold?

• 6 electrons

• 2 electrons

• 14 electrons

• 10 electrons

What is the maximum number of electrons that d orbitals can hold?

• 14 electrons

• 10 electrons

• 6 electrons

• 2 electrons

What principle is used to fill electrons in an orbital energy diagram?

• Heisenberg Uncertainty Principle

• Hund's Rule

• Pauli Exclusion Principle

• Aufbau Principle

What does the Aufbau principle state about electron filling?

• Electrons fill from the lowest to the highest energy orbitals

• Electrons fill orbitals randomly

• Electrons fill orbitals of the same energy with parallel spins first

• Electrons fill from the highest to the lowest energy orbitals

According to Hund's rule, how are electrons arranged in orbitals?

• All electrons in a single orbital before moving to the next

• In a random manner

• Maximizing parallel spin

• With opposite spins

What rule explains the stability of parallel spin in electron configurations?

• Aufbau Principle

• Pauli Exclusion Principle

• Heisenberg Uncertainty Principle

• Hund's Rule

Which block of the periodic table starts with the 3d orbital?

• p block

• d block

• f block

• s block

What is the electron configuration for sodium?

• 1s2 2s2 2p6 3p1

• 1s2 2s2 2p6 3s2

• 1s2 2s2 2p5

• 1s2 2s2 2p6 3s1

Tags

NGSS.HS-PS1-1

Which orbital comes before 3d in the order of filling?

• 3p

• 2p

• 4p

• 4s