Electron configuration and quantum theory

Front

What is the electron configuration of an atom with 10 electrons?

Back

1s² 2s² 2p⁶.

Front

What is the maximum number of electrons that can occupy the first energy level?

Back

2 electrons.

Front

What does the designation '2p' represent in electron configuration?

Back

It represents a p sublevel in the second energy level.

Front

Which of the following is a valid designation for a sublevel: 2s, 3d, or zz?

Back

2s and 3d are valid; zz is not.

Front

How are electrons arranged in an atom according to energy levels?

Back

Electrons are arranged in energy levels, with those closest to the nucleus having the lowest energy.

Front

What is the shape of an s orbital?

Back

S orbitals are spherical.

Front

What is the shape of a p orbital?

Back

P orbitals are dumbbell-shaped.

Front

How many orbitals are in the d sublevel?

Back

There are 5 orbitals in the d sublevel.

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 Hund's Rule?

Back

Electrons will fill degenerate orbitals singly before pairing up.