Electrons in Atoms Review

How many electrons are in the highest energy level of a neutral atom of Chlorine?

• 2
• 8
• 7
• 35

In a neutral atom, what needs to be true?

• The number of protons and neutrons are the same
• The number of protons and electrons are the same
• The number of neutrons and electrons are the same
• None of the above

What part of the atom has a negative charge?

• The nucleus
• The protons
• The neutrons
• The electrons

An atom that is charged (has a positive or negative charge) is called ___________.

• A proton
• An isotope
• An ion
• A neutron

Which particle orbits around the nucleus of the atom?

• Protons
• Neutrons
• Electrons
• None of the above

Visible light, x-rays, infrared radiation and radio waves all have the same:

• energy
• wavelength
• speed
• frequency

Frequency is measured in:

• nanometers
• meters
• quanta
• hertz

In order for an electron to change from its ground state to an excited state,

• energy must be released
• energy must be absorbed
• radiation must be emitted
• the electron cannot become excited

The size and shape of an electron cloud are most closely related to the electron's

• charge
• mass
• spin
• energy

A 3-D region around a nucleus where an electron may be found is called a(n):

• spectral line
• orbit
• orbital
• electron path