Day 5 - PM

According to the Bohr model of the atom, which particles are allowed to exist in any one of a number of energy levels?

• electrons

• protons

• neutrons

• both b and c

The line-emission spectrum of an atom is caused by the energies released when electrons -

• “jump” from a lower energy level to a higher energy level.

• “jump” from a higher energy level to a lower energy level.

• “jump” from the ground state to an excited state.

• None of the above

Which color of light in the visible spectrum has the longest wavelength?

• yellow

• red

• green

• blue

A quantum of energy is the -

• frequency of electromagnetic energy given off by an atom.

• wavelength of electromagnetic energy gained by an atom.

• minimum quantity of energy that can be lost or gained by an atom.

• continuous spectrum of energy given off by an atom

Bohr’s model correctly explains the spectra of atoms with how many electron(s)?

• one

• two

• three

• four or more

A form of energy that exhibits wave behavior as it travels through space is -

• microwave radiation.

• ultraviolet radiation.

• infrared radiation.

• All of the above

In the equation c = lv, c represents -

• the wavelength

• the frequency

• the speed of light.

• Planck's constant.

The process of an atom releasing energy when it moves to a lower energy state is called -

• absorption

• emission

• translation

• regression

In the Bohr model of the atom, in which orbit is an electron in its lowest energy state?

• in the orbit closest to the nucleus

• in the orbit farthest from the nucleus

• in the electron cloud

• midway between two orbits

Which of the following types of electromagnetic radiation has the lowest frequency?

• x rays

• infrared light

• ultraviolet light

• microwaves