Chem M4 Test Review

According to the quantum mechanical model of the atom, an orbital represents a:

• surface beyond which electrons cannot go

• position an electron must be

• point where an electron cannot be

• position where an electron probably is

What can you conclude from the figure shown?

• The Pauli exclusion principle has been violated

• the aufbau principle has been violated

• This is a valid orbital diagram

• Hund's rule has been violated

What can you conclude from the figure shown?

• The Pauli exclusion principle has been violated

• the aufbau principle has been violated

• This is a valid orbital diagram

• Hund's rule has been violated

What did de Broglie propose to account for the fixed energy levels in Bohr's model of the atom?

• all matter behaves like particles

• all matter has an associated wavelength

• most particles are electrons

• waves behave like particles

Tags

NGSS.HS-PS4-3

According to Bohr's atomic model, which of the following places can an electron NEVER be found? Choose all that apply.

• the first orbit

• the excited state

• the nucleus

• the ground state orbit

• between orbits

Match each of the vocabulary terms below with its definition.

• photoelectric effect

• a form of energy that exhibits wavelike behavior as it travels through space

• electromagnetic radiation

• the emission of electrons from a metal’s surface when light of a certain frequency shines on it

• wavelength

• the shortest distance between equivalent points on a continuous wave

• quantum

• the minimum amount of energy that can be lost or gained by an atom

• atomic emission spectrum

• the set of frequencies of the electromagnetic waves emitted by the atoms of an element

Tags

NGSS.HS-PS4-1

NGSS.HS-PS4-3

NGSS.HS-PS4-4

Match each of the vocabulary terms below with its definition.

• atomic orbital

• a particle of electromagnetic radiation with no mass that carries a quantum of energy

• photon

• a figure indicating the relative sizes and energies of atomic orbitals

• ground state

• a three-dimensional region around the nucleus of an atom that describes an electron’s probable location

• principal quantum number

• the lowest allowable energy state of an atom