Atom physics

Which electron transition between the energy

levels of hydrogen causes the emission of a photon of

visible light?

• 𝑛 = 6 to 𝑛 = 5

• 𝑛 = 5 to 𝑛 = 6

• 𝑛 = 5 to 𝑛 = 2

• 𝑛 = 2 to 𝑛 = 5

Tags

NGSS.HS-PS4-3

Which of the following transitions is the result of

the atom absorbing a photon of the shortest

wavelength?

• A

• B

• C

• D

Tags

NGSS.HS-PS4-1

NGSS.HS-PS4-3

Which of the transitions below for a hydrogen

atom involves the least energy?

• 𝑛= 5 𝑡𝑜 𝑛 = 3

• 𝑛 = 5 𝑡𝑜 𝑛 = 4

• 𝑛 = 2 𝑡𝑜 𝑛 = 5

• 𝑛I= 4 𝑡𝑜 𝑛 = 7

Tags

NGSS.HS-PS1-2

Which type of photon is emitted when an electron

in a hydrogen atom drops from the n=2 to the n=1

energy level?

• Ultraviolet

• Visible light

• Infrared

• Radio wave

Tags

NGSS.HS-PS4-3

The visible lines from hydrogen are all members

of the ____.

• Lyman series

• Balmer series

• Paschen series

• Lyman and Paschen series

Tags

NGSS.HS-ESS1-2

What is the minimum energy required to ionize a

hydrogen atom in the n=3 state?

• 0.66 eV

• 1.51 eV

• 12.09 eV

• 13.6 eV

The energy level diagram for a hypothetical atom

is shown in the figure below. Which of the labeled

transitions in the diagram would produce a photon

with the shortest wavelength?

• A

• B

• C

• D

Tags

NGSS.HS-PS4-1

NGSS.HS-PS4-3

A photon having an energy of 9.40 electron volts

strikes a hydrogen atom in the ground state. Why is

the photon not absorbed by the hydrogen atom?

• The atom’s orbital electron is moving too

  fast

• The photon striking the atom is moving

  too fast

• The photon’s energy is too small

• The photon is being repelled by

  electrostatic force

Tags

NGSS.HS-PS4-3

NGSS.HS-PS4-4

What did Rutherford’s experiment demonstrate?

• The atomic nucleus was a large spherical volume of positive charge.

• The atomic nucleus was a small, compact region of positive charge.

• The electrons were imbedded in the sphere of positive charge.

• The electrons moved around the nucleus like planets orbiting thesun.

Compared to the charge and mass of a proton, an electron has ______.

• the same charge and a smaller mass

• the same charge and the same mass

• an opposite charge and a smaller mass

• an opposite charge and the same mass