Front

What is the electron configuration of Oxygen (O)?

Back

1s² 2s² 2p⁴

Front

Which sublevel has higher energy: 2s or 2p?

Back

2p has higher energy than 2s.

Front

What does Hund's rule state?

Back

Every orbital in a sublevel is singly occupied before any orbital is doubly occupied.

Front

What is the Pauli Exclusion Principle?

Back

No two electrons in an atom can have the same set of four quantum numbers.

Front

What is the electron configuration of Copper (Cu)?

Back

1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 3d⁹

Front

How many valence electrons does Phosphorus (P) have?

Back

Phosphorus has 5 valence electrons.

Front

What is a dot diagram?

Back

A dot diagram represents the valence electrons of an atom using dots around the element's symbol.

Front

What is the Aufbau principle?

Back

Electrons occupy the lowest energy orbitals first before filling higher energy orbitals.

Front

How many total electrons can the 3d sublevel hold?

Back

The 3d sublevel can hold a maximum of 10 electrons.

Front

What is the maximum number of electrons in the 2p sublevel?

Back

The 2p sublevel can hold a maximum of 6 electrons.