Atomic Theory and Electrons

Major difference between the 1s and 2s orbitals is that

• 2s is higher in energy

• 1s can only have one electron

• 2s has a different shape

• 2s can hold more electrons

the energy level that can only hold 2 electrons is

• first

• second

• third

• fourth

how many orbitals does s have?

• 1

• 2

• 3

• 4

If an energy level is filled with 8 electrons, which level is it?

• 2

• 4

• 8

• 32

How many orbitals does d have?

• 1

• 5

• 7

• 3

What is Chromium's electron configuration?

• 4s1 3d5

• 4s2 3d5

• 4s2 3d4

• 4s2 4d4

Which model of the electron explains why electrons give off light when excited

• Bohr

• Rutherford

• Plank

• Quantum

How many possible orbital shapes are there in the fourth energy level?

• 1

• 4

• 16

• 32

a quantum of electromagnetic (light) energy is called a

• photon

• electron

• proton

• neutron

What is the sublevel with the next highest energy after 4p?

• 5s

• 4f

• 4d

• 5p