PS.1.1 and PS.1.6 TCAP Review Practice

What are the three subatomic particles that make up an atom?

• Protons, electrons, and positrons
• Protons, neutrons, and photons
• Protons, neutrons, and electrons
• Neutrons, electrons, and muons

What does the atomic number of an element represent?

• The total mass of an atom.
• The number of electrons in an atom.
• The number of neutrons in an atom.
• The number of protons in an atom.

In the phase diagram to the right,

X represents the substance in the solid state.

Y represents the substance in the liquid state.

Z represents the substance in the gas state.

Which of the following best describes the process that will occur if the substance described in the diagram moves from point E to point F?

• Freezing
• Condensation
• Sublimation
• Melting

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

NGSS.MS-PS3-5

Which statement best describes electrons?

• Electrons are positively charged particles.
• Electrons have no charge and are neutral particles.
• Electrons are found in the nucleus of an atom.
• Electrons are negatively charged subatomic particles.

Tags

NGSS.MS-PS2-3

Examine the illustrations below.

Which model shows the structure and movement of particles in a liquid?

• Model 2
• Model 3
• Model 4
• Model 1

Tags

NGSS.MS-PS1-4

Helium (He) has an atomic number of two because it has two?

• nuclei
• neutrons
• protons
• electrons

Which mathematical equation can be used to help determine the number of neutrons in an atom?

• Neutrons = Atomic Number + Atomic Mass
• Neutrons = Atomic Mass / Atomic Number
• Neutrons = Atomic Number - Atomic Mass
• Neutrons = Atomic Mass - Atomic Number

The diagram represents gas particles in a closed container.

What could cause the particles to become more closely packed together?

• Decrease temperature

• Add more gas particles
• Increase volume
• Increase temperature

Tags

NGSS.MS-PS1-4

Which model best represents the nucleus of an atom of boron (B)?

• model d

• model a

• model c

• model b

Tags

NGSS.MS-PS1-1

If an atom is neutral, it has an equal number of

• neutrons and protons
• electrons and neutrons
• protons and positrons
• protons and electrons