Unit 3 Electrons

Front

What does Hund's Rule state?

Back

Orbitals of equal energy always get one electron before any orbital gets a pair.

Front

What is the Octet Rule?

Back

The tendency for atoms to prefer to have eight valence electrons.

Front

Which statement about electron behavior is not true?

Back

Electrons closer to the nucleus have more energy than electrons further from the nucleus.

Front

Identify the element with the electron configuration: [Ar]4s²3d¹º4p³.

Back

As (Arsenic)

Front

Identify the element with the electron configuration: 1s²2s²2p².

Back

C (Carbon)

Front

What is the Aufbau Principle?

Back

Electrons fill orbitals starting from the lowest energy level to the highest.

Front

Define valence electrons.

Back

Electrons in the outermost shell of an atom that are involved in chemical bonding.

Front

What is the significance of the quantum numbers?

Back

Quantum numbers describe the properties of atomic orbitals and the electrons in those orbitals.

Front

What is the difference between ground state and excited state of an electron?

Back

Ground state is the lowest energy state, while excited state is when an electron has absorbed energy and moved to a higher energy level.

Front

What is an orbital?

Back

An orbital is a region in an atom where there is a high probability of finding electrons.