Unit 4 Test: Electrons and Light

Front

What is wavelength?

Back

Wavelength is the distance between successive crests (or troughs) of a wave, typically measured in meters.

Front

What is the electron configuration for a ground-state atom with 7 electrons?

Back

1s² 2s² 2p³

Front

How many electrons can the first energy level hold?

Back

The first energy level can hold a maximum of 2 electrons.

Front

What is the electron configuration for Zinc?

Back

1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 3d¹⁰

Front

Which element in Period 4 has 5 valence electrons?

Back

Arsenic (As) has 5 valence electrons.

Front

What is the maximum number of electrons in the second energy level?

Back

The second energy level can hold a maximum of 8 electrons.

Front

Define 'valence electrons'.

Back

Valence electrons are the electrons in the outermost shell of an atom that are involved in forming bonds.

Front

What is the significance of the electron configuration?

Back

Electron configuration determines the distribution of electrons in an atom's orbitals, influencing its chemical properties.

Front

What is the shape of an s orbital?

Back

An s orbital has a spherical shape.

Front

What is the shape of a p orbital?

Back

A p orbital has a dumbbell shape.