Atoms and Particles

What are atoms made up of?

• Protons, neutrons, and electrons

• Protons, electrons, and molecules

• Protons, neutrons, and molecules

• Neutrons, electrons, and compounds

What is a molecule?

• A subatomic particle with a positive charge

• A single atom with a negative charge

• Groups of atoms chemically bonded together

• A subatomic particle with no charge

Which subatomic particle has a positive charge?

• Neutron

• Electron

• Molecule

• Proton

What is the charge of a neutron?

• Positive

• Negative

• No charge (neutral)

• Variable charge

Where can you find an electron in an atom?

• In the nucleus with a positive charge

• In the nucleus with no charge

• Orbiting the nucleus with a negative charge

• Orbiting the nucleus with a positive charge

How can you determine the number of neutrons in an atom if you know its atomic number and mass number?

• Subtract the atomic number from the mass number

• Add the atomic number to the mass number

• Multiply the atomic number by the mass number

• Divide the mass number by the atomic number

Which subatomic particle is not found in the nucleus of an atom?

• Proton

• Neutron

• Electron

• All of the above are found in the nucleus

What does the atomic number of an element represent?

• The number of protons in the nucleus

• The number of neutrons in the nucleus

• The total number of protons and neutrons in the nucleus

• The total number of protons and electrons in an atom

What is the charge of a proton?

• Negative

• Positive

• Neutral

• Variable

What is the significance of the atomic number in determining the chemical properties of an element?

• It determines the element's position on the periodic table

• It indicates the number of electrons in a neutral atom, which determines how the atom will react chemically

• It shows the total mass of the atom

• It is only important for isotopes