subatomic particles

Question 1

What are the three main types of subatomic particles?

Answer 1

Protons, neutrons, and electrons.

Question 2

True or False: Electrons have a positive charge.

Answer 2

False.

Question 3

Fill in the blank: The charge of a proton is ____.

Answer 3

positive.

Question 4

Which subatomic particle is found in the nucleus of an atom?

Answer 4

Proton and neutron.

Question 5

What is the relative mass of a neutron compared to a proton?

Answer 5

Approximately the same.

Question 6

Multiple Choice: Which particle has a negative charge? A) Proton B) Neutron C) Electron

Answer 6

C) Electron.

Question 7

What is the term for the number of protons in the nucleus of an atom?

Answer 7

Atomic number.

Question 8

True or False: Neutrons have no charge.

Answer 8

True.

Question 9

Fill in the blank: The mass of an electron is ____ compared to protons and neutrons.

Answer 9

much smaller.

Question 10

What force holds protons and neutrons together in the nucleus?

Answer 10

Strong nuclear force.

Question 11

Multiple Choice: Which of the following particles is not a baryon? A) Proton B) Neutron C) Electron

Answer 11

C) Electron.

Question 12

What is the role of electrons in an atom?

Answer 12

To form chemical bonds and determine the atom’s reactivity.

Question 13

True or False: An atom is electrically neutral when it has an equal number of protons and electrons.

Answer 13

True.

Question 14

Fill in the blank: The strong nuclear force operates over ____ distances.

Answer 14

very short.

Question 15

What is the combined mass of protons and neutrons in an atom called?

Answer 15

Atomic mass.

Question 16

Multiple Choice: Which particle can exist in different energy states in an atom? A) Proton B) Neutron C) Electron

Answer 16

C) Electron.

Question 17

What is the quark composition of a proton?

Answer 17

Two up quarks and one down quark.

Question 18

True or False: Quarks are fundamental particles and cannot be divided.

Answer 18

True.

Question 19

Fill in the blank: The particle that mediates the electromagnetic force is called a ____.

Answer 19

photon.

Question 20

What type of particle are protons and neutrons classified as?

Answer 20

Baryons.

Question 21

Multiple Choice: Which of the following is a type of lepton? A) Proton B) Neutron C) Electron

Answer 21

C) Electron.

Question 22

What is the term for a particle that has a half-integer spin?

Answer 22

Fermion.

Question 23

True or False: All baryons are made up of quarks.

Answer 23

True.

Question 24

Fill in the blank: The weak nuclear force is responsible for ____ decay.

Answer 24

beta.

Question 25

What is the charge of a neutron?

Answer 25

Neutral.

Question 26

Multiple Choice: Which particle has the highest mass? A) Proton B) Neutron C) Electron

Answer 26

B) Neutron.

Question 27

What is the primary role of gluons in atomic structure?

Answer 27

To mediate the strong force between quarks.