Question 1 (3 points) Which type of energy CANNOT move an electron to an excited

Question

Question 1 (3 points)

Which type of energy CANNOT move an electron to an excited state?

Question 1 options:

Thermal energy ("heat")

Radiant energy ("light")

Electrical energy

All of these types of energy (thermal, radiant, electrical) can excite an electron.

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Question 2 (2 points)

When may photons be emitted from an atom?

Question 2 options:

When an electron enters a stable orbital.

When an electron moves from a ground to an excited state.

When an electron moves from an excited to a ground state.

When an electron collides with another electron.

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Question 3 (3 points)

What is the ionization energy?

Question 3 options:

The energy required to remove an electron from a gaseous atom in its ground state.

The energy required to remove an electron from a gaseous atom in an excited state.

The energy required to remove an electron from any atom in an excited state.

The energy required to remove an electron from any atom in a ground state.

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Question 4 (2 points)

Which is the following is a property of an individual atom?

Question 4 options:

Ionization energy.

Melting point.

Heat of fusion.

Boiling point.

A)

Thermal energy ("heat")

B)

Radiant energy ("light")

C)

Electrical energy

D)

All of these types of energy (thermal, radiant, electrical) can excite an electron.

Explanation / Answer

Question 1 Answer: (a) Thermal energy ("heat")

Question 2 Answer: When an electron moves from an excited to a ground state.

Question 3 Answer: The energy required to remove an electron from a gaseous atom in its ground state.

Question 4 Answer: Ionization energy

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