IPC Unit 02 - Quantum Phenomena Quiz

What is a packet of light energy known as?

• Quantum

• Photon

• Emission

• Energy Level

Answer explanation

A packet of light energy is called a photon. Photons are the fundamental particles of light and carry energy, making 'photon' the correct answer among the options provided.

Tags

NGSS.HS-PS4-3

Which term refers to the lowest energy state of an atom?

• Excited State

• Photon

• Ground State

• Quantum

Answer explanation

The ground state of an atom is its lowest energy state, where electrons are in the closest possible orbitals to the nucleus. In contrast, the excited state refers to higher energy levels.

For smaller atoms, what is suggested to use for protons and neutrons?

• Letters

• Numbers

• Symbols

• Colors

Answer explanation

For smaller atoms, using symbols is suggested for protons and neutrons because they provide a clear and concise way to represent these particles, making it easier to understand atomic structure and reactions.

Tags

NGSS.MS-PS1-1

What is the relationship between periods and energy levels?

• Period number equals energy level number

• Period number is double the energy level number

• Period number is half the energy level number

• Period number is unrelated to energy level number

Answer explanation

The period number in the periodic table corresponds directly to the principal energy level of the electrons in an atom. Therefore, the correct relationship is that the period number equals the energy level number.

Tags

NGSS.HS-PS1-1

What is the charge of the particles shown in the nucleus of the diagram?

• Positive

• Negative

• Neutral

• Mixed

Answer explanation

The particles in the nucleus are protons and neutrons. Protons carry a positive charge, while neutrons are neutral. Therefore, the charge of the particles shown in the nucleus is positive.

Tags

NGSS.MS-PS1-1

What is a pro tip mentioned for drawing electrons?

• Draw the nucleus first

• Draw the valence electrons first

• Draw the protons first

• Draw the neutrons first

Answer explanation

The pro tip for drawing electrons is to start with the valence electrons first. This approach helps in accurately representing the outermost electrons that are involved in chemical bonding, making it essential for understanding molecular structure.

What is the total number of electrons in a neutral Potassium atom?

• 18

• 19

• 20

• 21

Answer explanation

A neutral Potassium atom has 19 electrons, equal to its atomic number (19). This balance of protons and electrons ensures the atom is neutral.

What is the charge of a neutron?

• Positive

• Negative

• Neutral

• Variable

Answer explanation

A neutron has no electric charge, making it neutral. This distinguishes it from protons, which are positively charged, and electrons, which are negatively charged.

What happens when a photon hits a Neon atom?

• The atom releases energy.

• The electrons absorb the energy.

• The atom splits into two.

• The electrons emit light.

Answer explanation

When a photon hits a Neon atom, the electrons absorb the energy from the photon, which can excite them to higher energy levels. This process does not cause the atom to split or emit light directly.

Tags

NGSS.HS-PS4-1

NGSS.HS-PS4-3

What did Mr. Young fire at the screen in his experiment?

• A beam of electrons

• A beam of light

• A beam of protons

• A beam of neutrons

Answer explanation

Mr. Young fired a beam of electrons at the screen in his experiment. This choice is correct as electrons are commonly used in experiments involving screens to study their properties and interactions.

Tags

NGSS.HS-PS4-3