Electronic Structure of Atoms and Periodic Trends

Each type of electromagnetic radiation has a specific ______ and frequency.

• amplitude

• wavelength

• speed

• height

A wavelength (λ) is the distance between a crest or trough in a wave and the next crest or trough on that wave. True or False?

• True

• False

The frequency (ν) is the number of waves that pass a certain point in one second. True or False?

• True

• False

Which part of the wave is labeled as the 'Trough' in the diagram?

• a

• b

• c

• d

Which electromagnetic wave is used for heating in microwave ovens?

• Radio waves

• Microwaves

• Infrared

• Ultraviolet

Electrons move to a higher energy level when they _______ energy.

• A) lose

• B) absorb

• C) emit

• D) transfer

An s sublevel contains how many s orbitals?

• One

• Two

• Three

• Four

The energy level n=1 has only the ___ sublevel.

• s

• p

• d

• f

The energy level n=4 has ___ types of sublevels.

• 1

• 2

• 3

• 4

In the orbital diagram for silicon, how many unpaired electrons are present in the 3p sublevel?

• One

• Two

• Three

• None