Subatomic Particles Quiz

What is the charge of a proton?

• Neutral

• Positive

• Negative

• None of the above

Answer explanation

The charge of a proton is positive, making the correct answer choice 'Positive'.

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DOK Level 1: Recall

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

• Electron

• Neutron

• Positron

• Photon

Answer explanation

The subatomic particle found in the nucleus of an atom along with protons is the neutron. Neutrons have no charge and help stabilize the nucleus.

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DOK Level 1: Recall

What is the relative mass of an electron compared to a proton?

• Approximately the same

• Much smaller

• Much larger

• Exactly the same

Answer explanation

The correct answer is 'Much smaller' because the relative mass of an electron is much smaller compared to a proton.

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DOK Level 1: Recall

How many protons are in the nucleus of a carbon atom with an atomic number of 6?

• 6

• 12

• 3

• 1

Answer explanation

The correct choice is 6 because the atomic number of an element represents the number of protons in its nucleus.

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DOK Level 1: Recall

If an atom has 8 protons and 8 neutrons, what is its mass number?

• 8

• 16

• 24

• 32

Answer explanation

The mass number is the sum of protons and neutrons in an atom. In this case, 8 protons + 8 neutrons = 16, so the mass number is 16.

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DOK Level 1: Recall

Which subatomic particle identifies an element?

• Proton

• Neutron

• Electron

Answer explanation

The subatomic particle that identifies an element is the proton. Protons are located in the nucleus of an atom and determine the atomic number of an element.

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DOK Level 2: Skill/Concept

Calculate the number of neutrons in an atom of oxygen with a mass number of 16 and an atomic number of 8.

• 8

• 10

• 18

• 26

Answer explanation

The number of neutrons in an atom can be calculated by subtracting the atomic number from the mass number. In this case, 16 - 8 = 8 neutrons.

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DOK Level 2: Skill/Concept

Which of the following statements is true about the atomic number?

• It is the number of neutrons in an atom.

• It is the number of protons in an atom.

• It is the sum of protons and neutrons.

• It is the number of electrons in an atom.

Answer explanation

The atomic number is the number of protons in an atom, which is also equal to the number of electrons in an atom. Therefore, the correct statements are that the atomic number is the number of protons and the number of electrons in an atom.

An atom has an atomic number of 11 and a mass number of 23. How many neutrons does it have?

• 11

• 12

• 23

• 34

Answer explanation

To find the number of neutrons, subtract the atomic number (11) from the mass number (23): 23 - 11 = 12. Therefore, the atom has 12 neutrons.

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DOK Level 2: Skill/Concept

Which subatomic particle has the least mass?

• Proton

• Neutron

• Electron

• Alpha particle

Answer explanation

The subatomic particle with the least mass is the Electron.

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DOK Level 1: Recall