Question

The Pauli Exclusion Principle says ___.

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

Electrons will occupy separate orbitals within a subshell until the subshell is more than half-filled.

Electrons will occupy the lowest energy orbitals available.

No two electrons are alike.

What is the electronic configuration of ₁₅P?
[Ne] 3s² 3p³	[Ne] 3s³ 3p²	[Ar] 4s² 3d³	[Ne] 3s² 3p⁶

What is the electronic configuration of ₁₆S^2-?
[Ne] 3s² 3p⁴	[Ne] 3s² 3p²	[Ar] 4s² 3d⁶	[Ne] 3s² 3p⁶

What is the electronic configuration of ₂₃V?
[Ar] 4s² 3d²	[Ar] 4s² 3d³	[Ar] 4s¹ 3d²	[Ar] 3d⁵

What is the electronic configuration of ₂₇Co?
[Ar] 4s² 3d⁵	[Ar] 4s¹ 3d⁸	[Ar] 4s² 3d¹⁰	[Ar] 4s² 3d⁷

What is the electronic configuration of ₂₇Co²⁺?
[Ar] 4s² 3d⁵	[Ar] 3d⁷	[Ar] 4s² 3d⁹	[Ar] 4s² 3d⁷

What is the electronic configuration of ₂₉Cu?
[Ar] 4s² 3d⁹	[Ar] 3d⁹	[Ar] 4s²3d¹⁰	[Ar] 4s¹ 3d¹⁰

The Auf Bau Principle says ___.
No two electrons in an atom can have the same set of four quantum numbers.	Electrons will occupy separate orbitals within a subshell until the subshell is more than half-filled.	Electrons will occupy the lowest energy orbitals available.	No two electrons are alike.

Hund's Rules says ___.
No two electrons in an atom can have the same set of four quantum numbers.	Electrons will occupy separate orbitals within a subshell until the subshell is more than half-filled.	Electrons will occupy the lowest energy orbitals available.	No two electrons are alike.

Draw an obital diagram for the valence electrons in ₃₃As. How many unpaired electrons are there?
1	2	3	4

When an atom forms a positive ion ___.
it loses electrons with the highest n first	it loses electrons with the highest l first	it maximizes the number of unpaired electrons	it always ends up with a noble gas configuration

Electronic Configurations