The principle states that it is impossible to know the exact position and momentum of an electron

• Aufbau’s Principle

• Heisenberg Uncertainty principle

• Hund’s Rule

• Pauli Exclusion Principle

Of the quantum numbers, what letters represents the energy level?

• L

• ml

• ms

• n

The electron configuration of helium is 1s2,2s2. Which electron in helium has more energy?

• The electron in 1s1

• The electron in 1s2

• The electron in 2s2

• None of the above

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

What are the four quantum numbers of helium in this order: n, l, ml, ms?

• 1,0,0,1/2

• 1,0,0,-1/2

• 2,0,0,1/2

• 2,0,0,-1/2

What is the quantum number that gives the 3D orientation of each orbital?

• Angular momentum quantum number

• Magnetic quantum number

• Electron spin quantum number

• Principal Quantum number

What are the four quantum numbers of hydrogen in this order: n,l,ml,ms?

• 1,0,0,1/2

• 1,0,0,-1/2

• 2,0,0,1/2

• 2,0,0,-1/2

What is the electron configuration of Beryllium?

• 1s2, 2s2

• 1s2 2p2 2d2

• 1s2 2p5

• 1s2 2s2 2p6

Tags

NGSS.HS-PS1-1

Which element has the following electron configuration: 1s2, 2s2, 2p6

• Fluorine

• Neon

• Nitrogen

• Oxygen

Tags

NGSS.HS-PS1-1

What is the magnetic property of a substance that does not have any unpaired electrons?

• Diamagnetic

• Ferromagnetic

• Paramagnetic

• None of the above

What is the magnetic property of a substance that has atleast 1 unpaired electrons?

• Diamagnetic

• Ferromagnetic

• Paramagnetic

• None of the above