Energy Levels and Electrons Quizizz

Which principal energy level can hold a maximum of 18 electrons?

• 5

• 2

• 3

• 4

Which principal energy level of an atom contains an electron with the lowest energy?

• n = 1

• n = 2

• n = 3

• n = 4

What is the total number of occupied principal energy levels in an atom of neon in the ground state?

• 1

• 2

• 3

• 4

Which element has atoms with only one completely filled principal energy level?

• N

• P

• As

• Sb

What is the maximum number of electrons that may be present in the second principal energy level of an atom?

• 8

• 2

• 18

• 32

The principal quantum number of the outermost electron of an atom in the ground state is n = 3. What is the total number of occupied principal energy levels contained in this atom?

• 1

• 2

• 3

• 4

What is the total number of electrons in the second energy shell of a calcium atom in the ground state?

• 6

• 2

• 8

• 18

In the ground state, all of the atoms of Period 3 elements have the same

• atomic mass

• atomic number

• number of occupied energy shells

• number of oxidation states

The characteristic bright-line spectrum of an atom is produced by its

• electrons absorbing energy

• electrons emitting energy

• protons absorbing energy

• protons emitting energy

When electrons in an atom in an excited state fall to lower energy levels, energy is

• absorbed, only

• released, only

• neither released nor absorbed

• both released and absorbed