U3: Concept 1: Matter Quiz

What is an atom?

• The central part of an atom, containing protons and neutrons.

• A subatomic particle with a negative charge, orbiting the nucleus.

• The basic unit of a chemical element.

• A substance composed of two or more different elements chemically bonded.

What is the nucleus of an atom?

• A subatomic particle with a positive charge, found in the nucleus.

• The basic unit of a chemical element.

• A substance composed of atoms with the same number of protons.

• The central part of an atom, containing protons and neutrons.

What is an electron?

• A subatomic particle with no charge, found in the nucleus.

• A subatomic particle with a positive charge, found in the nucleus.

• A subatomic particle with a negative charge, orbiting the nucleus.

• A substance composed of atoms with the same number of protons.

What is a proton?

• A subatomic particle with a negative charge, orbiting the nucleus.

• A subatomic particle with no charge, found in the nucleus.

• A substance composed of atoms with the same number of protons.

• A subatomic particle with a positive charge, found in the nucleus.

What is a neutron?

• A subatomic particle with a positive charge, found in the nucleus.

• A subatomic particle with a negative charge, orbiting the nucleus.

• A subatomic particle with no charge, found in the nucleus.

• A substance composed of two or more different elements chemically bonded.

What is an element?

• Atoms of the same element with different numbers of neutrons.

• A substance composed of two or more different elements chemically bonded.

• A subatomic particle with no charge, found in the nucleus.

• A substance composed of atoms with the same number of protons.

What is an isotope?

• A substance composed of two or more different elements chemically bonded.

• A substance composed of atoms with the same number of protons.

• Atoms of the same element with different numbers of neutrons.

• A subatomic particle with a positive charge, found in the nucleus.

What is a covalent bond?

• A. A type of chemical bond formed by the transfer of electron pairs.

• B. A type of chemical bond formed by the sharing of electron pairs.

• C. A type of chemical bond formed by the sharing of protons.

• D. A type of chemical bond formed by the attraction between ions.

What is a compound?

• A single atom that can exist independently.

• A group of atoms held together by ionic bonds.

• A thing that is composed of two or more separate elements

• A type of chemical reaction between atoms.

Molecule is best defined by:

• 1. a group of atoms bonded together, representing the smallest fundamental unit of a chemical compound that can take part in a chemical reaction.

• the smallest unit that can live on its own and that makes up all living organisms and the tissues of the body

• A single atom
• particle smaller than an atom (e.g., a neutron) or a cluster of such particles (e.g., an alpha particle).