Chemistry Quiz: Trivia Questions On Atoms

1. AMU stands for

Absolute Mass Unit

Atomic Making Unit

Atomic Mass Unit

Abraham's Mass Unit

AMU stands for Atomic Mass Unit. This unit is used to measure the mass of atoms and molecules. It is defined as 1/12th the mass of a carbon-12 atom. The atomic mass unit is commonly used in chemistry and physics to express the relative masses of atoms and molecules.

Explanation

AMU stands for Atomic Mass Unit. This unit is used to measure the mass of atoms and molecules. It is defined as 1/12th the mass of a carbon-12 atom. The atomic mass unit is commonly used in chemistry and physics to express the relative masses of atoms and molecules.

2. If the atomic number is 9, the number of protons is

8

9

1

12

The atomic number represents the number of protons in an atom. Therefore, if the atomic number is 9, it means that there are 9 protons in the atom.

Explanation

The atomic number represents the number of protons in an atom. Therefore, if the atomic number is 9, it means that there are 9 protons in the atom.

3. Protons are

Are negatively charged

Orbit the nucleus

Are positively charged

1/2000 amu

Protons are positively charged particles found in the nucleus of an atom. They have a mass of approximately 1/2000 amu.

Explanation

Protons are positively charged particles found in the nucleus of an atom. They have a mass of approximately 1/2000 amu.

4. Electrons are

Orbit the nucleus and negatively charged

Are positively charged and make up the nucleus

Take up most of the mass in the atom

Are the same as the atomic number

Electrons are subatomic particles that revolve around the nucleus of an atom in specific energy levels or orbits. They carry a negative charge and are responsible for the majority of an atom's volume. The statement accurately describes the behavior and charge of electrons in an atom.

Explanation

Electrons are subatomic particles that revolve around the nucleus of an atom in specific energy levels or orbits. They carry a negative charge and are responsible for the majority of an atom's volume. The statement accurately describes the behavior and charge of electrons in an atom.

5. The nucleus is

Is made up of protons and neutrons

Orbits the center proton

Is the coldest point in the atom

Surrounds the atom

The nucleus makes up most of the mass and is made up of protons and neutrons.

Explanation

The nucleus makes up most of the mass and is made up of protons and neutrons.

6. The atomic number

Tells what can and what cannot move in an atom

Orbits the center proton

States how many spoolas are in the nucleus

Is the same as the amount of protons

The atomic number of an atom refers to the number of protons in its nucleus. Protons are positively charged particles and are one of the fundamental components of an atom. The atomic number determines the element to which the atom belongs since each element has a unique number of protons. Therefore, the statement "the atomic number is the same as the amount of protons" is correct. It is important to note that the atomic number does not determine what can or cannot move in an atom, nor does it refer to the orbits of electrons or the number of spoolas in the nucleus.

Explanation

The atomic number of an atom refers to the number of protons in its nucleus. Protons are positively charged particles and are one of the fundamental components of an atom. The atomic number determines the element to which the atom belongs since each element has a unique number of protons. Therefore, the statement "the atomic number is the same as the amount of protons" is correct. It is important to note that the atomic number does not determine what can or cannot move in an atom, nor does it refer to the orbits of electrons or the number of spoolas in the nucleus.

7. If Aluminum has an atomic number of 13 and has 14 protons, what is its mass?

25

1

32

27

The atomic number of an element represents the number of protons in its nucleus. In this case, aluminum has an atomic number of 13, indicating that it has 13 protons. The given statement that aluminum has 14 protons contradicts this information, so it is incorrect. The correct answer is 27, which is not explained by the given statement.

Explanation

The atomic number of an element represents the number of protons in its nucleus. In this case, aluminum has an atomic number of 13, indicating that it has 13 protons. The given statement that aluminum has 14 protons contradicts this information, so it is incorrect. The correct answer is 27, which is not explained by the given statement.

8. If Uranium's atomic number is is 92 and it has 10 neutrons, how many protons does it have?

92

86

82

102

Uranium's atomic number represents the number of protons in its nucleus. Since the question states that Uranium's atomic number is 92, it means that Uranium has 92 protons. The number of neutrons is not relevant to determining the number of protons in an atom.

Explanation

Uranium's atomic number represents the number of protons in its nucleus. Since the question states that Uranium's atomic number is 92, it means that Uranium has 92 protons. The number of neutrons is not relevant to determining the number of protons in an atom.