Quantum Mechanics

. He contradicted Bohr’s Atomic Model, he stated that it is impossible to determine the location of the electrons.

• Dalton

• Thompson

• Rutherford

• Heisenberg

Who is best associated with the statement, "we cannot know the exact location of an electron, instead it is a cloud of probabilities"?

• John Dalton

• Ernest Rutherford

• Niels Bohr

• Max Planck

• Quantum Mechanics

Who is best associated with the statement, "energy comes in little packages called Quanta"?

• John Dalton

• Ernest Rutherford

• Niels Bohr

• Max Planck

• Quantum Mechanics

Tags

NGSS.HS-PS4-3

A quantum is

• the ability to do work

• what I need

• what is required to move an electron from one energy level to a higher energy level

• what is required for an electron to orbit the nucleus

When an electron absorbs a quantum of energy

• the electron gets "excited" and "jumps out" away from the nucleus

• the electron gets "excited" and "drops back down" closer to the nucleus

• the electron "calms down" and "jumps out" away from the nucleus

• the electron gets "calms down" and "drops back down" closer to the nucleus

The amount of energy an electron "gives back" is

• equal to the amount of energy the electron originally received

• equal to the wavelength of the electron's orbital

• inversely proportional to the amount of energy the electron originally received

• directly proportional to the energy of the nucleus

In Quantum Mechanics, the electron is most likely

• near the nucleus.

• in the highest energy level.

• a wave.

• antimatter.

Tags

NGSS.HS-PS4-3

This model of the atom is best associated with

• John Dalton

• Ernest Rutherford

• Niels Bohr

• Democritus

• Quantum Mechanics

Who is best associated with the statement, "electrons orbit the nucleus in specific energy levels"?

• John Dalton

• Ernest Rutherford

• Niels Bohr

• Max Planck

• Quantum Mechanics

To move an electron from energy level 1 to energy level 2

• requires the most amount of energy

• requires the least amount of energy

• requires no energy at all

• requires the aid of light