Quiz 2 : section 2 : Quantum Theory & the Atom

In Bohr's model, how do electrons travel?

• Electrons move in and out of the nucleus

• Electrons do not move

• Electrons move in circular orbits around the nucleus

• Electrons move in a straight line

What is n defined as in Bohr's model of the atom?

• A quantity

• Principal quantum variable

• A letter

• Principal quantum number

What is an energy level in an atom ?

• the number of protons in the nucleus

• the energy of the orbit that an electron occupies

• the number of electrons in the atom

• the number of orbitals in the atom

To excite an atom, there needs be...

• Absorption of energy

• Emission of energy

• Movement of electrons

• A proton

When an electron transitions from a higher energy level to a lower energy level....

• The electron collapse to the nucleus

• The electron loses all its energy

• Light is emitted

• Light is absorbed by the protons

Tags

NGSS.HS-PS1-4

As an electron gets closer to the nucleus the ...........to the nucleus gets..........

• attraction; weaker

• attraction; stronger

• repulsion; weaker

• repulsion; stronger

Consider the transition of n=5 to n=2 on the Bohr model of the hydrogen atom. This electron transition ____ energy.

• Release

• Absorbs

Tags

NGSS.HS-PS4-3

Which color in the Hydrogen emission spectrum represents the shortest wavelength

• Red

• Green

• Indigo

• Violet

Which transition involves more energy?

• n=6 to n=5

• n=8 to n=5

• n=8 to n=2

• n=6 to n=2