Who proposed that electrons are only found in specific, discrete circular orbits around the nucleus?

• Albert Einstein

• Erwin Schrodinger

• Ernest Rutherford

• Niels Bohr

Who used theoretical calculations and experimental results to devise and solve a mathematical equation describing the behavior of the electron in a hydrogen atom?

• JJ Thomson

• Niels Bohr

• Erwin Schrodinger

• James Chadwick

If n = 3, what is the maximum number of electrons that can fit in this shell?

• 2

• 8

• 18

• 32

How many d orbitals make up the d subshell?

• 1

• 5

• 3

• 7

What orbital is shown in the picture?

• s orbital

• p orbital

• d orbital

• f orbital

Tags

NGSS.HS-PS1-1

What is the difference in a 1s orbital and a 2s orbital?

• The shape of the orbital

• The size of the orbital

• The number of electrons it can hold

• None of the above

Which quantum number represents the shape of the orbital?

• principal quantum number

• azimuthal (angular momentum) quantum number

• magnetic quantum number

• spin quantum number

Which of the following values does NOT represent a valid electron?

• n=(2), l=(1), ml=(1), ms=(+1/2)

• n=(4), l=(2), ml=(-1), ms=(-1/2)

• n=(2), l=(0), ml=(0), m=(-1/2)

• n=(4), l=(2), ml=(-3), ms=(+1/2)

Which quantum number represents the orientation of the orbital?

• principal quantum number

• azimuthal (angular momentum) quantum number

• magnetic quantum number

• spin quantum number

When atoms _____________ energy, their electrons move to higher energy levels. These electrons _____________ energy by emitting light when they return to lower energy levels.

• lose, absorb

• absorb, lose

• lose, lose

• absorb, absorb

Tags

NGSS.HS-PS4-3

NGSS.HS-PS4-4