02.03.23 Matter Test

What are the subatomic particles?

• Protons, Electrons, Neutrons

• Molecules, and atoms

• Electrons, Protons, Nucleus

• Nucleus, and Electrons

Which of these is NOT true about atoms?

• Atoms make up matter.

• Atoms contain neutrons in the orbitals.

• Atoms are electrically neutral in nature.

• Atoms contain positive and negative charges.

Which subatomic particles are located in the nucleus of an atom?

• protons and electrons

• protons and neutrons

• electrons and neutrons

• neutrons only

Which of the subatomic particles is negatively charged?

• electrons

• neutrons

• nucleons

• protons

Which subatomic particles are positively charged?

• electrons

• neutrons

• nucleons

• protons

Which subatomic particles have no charge?

• electrons

• neutrons

• nucleons

• protons

Which of the following best describe a neutral atom?

• It has equal number of protons and electrons.

• It has equal number of protons and neutrons.

• It has equal number of electrons and neutrons.

• It has equal number of electrons, protons and neutrons.

Which of the following refers to the number of protons in the nucleus of an atom?

• Atomic number

• Group number

• Mass number

• Period number

Which of the following defines the mass number of an atom?

• number of electrons

• number of protons + number of electrons

• number of protons + number of neutrons

• number of neutrons + number of electrons

Which of the following help you determine the number of neutron of an atom?

• mass number - number of protons

• mass number + number of protons

• atomic number - number of protons

• atomic number + number of protons