The Atom Vocab Quizs

Quarks

• Fundamental particles that are components of protons and neutrons.

• Particles that orbit the nucleus of an atom.

• The smallest unit of a chemical element.

• Particles that make up electrons.

Atom

• The smallest unit of ordinary matter that forms a chemical element.

• A large particle made up of protons and neutrons.

• A type of molecule that cannot be broken down further.

• A form of energy that can be converted into matter.

Ion

• A neutral atom with no charge.

• An atom or molecule with a net electric charge due to the loss or gain of one or more electrons.

• A particle that cannot gain or lose electrons.

• A molecule that is always positively charged.

Isotopes

• Variants of a particular chemical element that have the same number of protons but different numbers of neutrons.

• Elements that have the same number of neutrons but different numbers of protons.

• Chemical compounds that contain different elements in varying proportions.

• Atoms that have the same mass number but different atomic numbers.

Periods

• Rows in the periodic table that represent the energy levels of electrons in an atom.

• Columns in the periodic table that group elements with similar properties.

• The total number of protons in an atom's nucleus.

• The number of electrons in the outermost shell of an atom.

Mass number

• The total number of protons and neutrons in an atomic nucleus.

• The total number of electrons in an atom.

• The number of protons in the nucleus only.

• The total number of neutrons in an atomic nucleus.

Valence electrons

• The electrons in the outer shell of an atom that are involved in forming bonds with other atoms.

• Electrons that are found in the nucleus of an atom.

• Electrons that are responsible for the mass of an atom.

• Electrons that are always in motion around the nucleus.

Neutron

• A positively charged particle found in the nucleus of atoms.

• A subatomic particle found in the nucleus of atoms that is neutral, meaning it has no charge.

• A negatively charged particle that orbits the nucleus of an atom.

• A particle that is responsible for the chemical properties of an element.

Proton

• A subatomic particle found in the nucleus of every atom, carrying a positive charge.

• A negatively charged particle that orbits the nucleus of an atom.

• A neutral particle found in the nucleus of an atom.

• A particle that is responsible for the chemical properties of an element.

Average atomic mass

• The total mass of an element's isotopes combined.

• The weighted average mass of the atoms in a naturally occurring sample of an element.

• The mass of an atom measured in atomic mass units (amu).

• The mass of an atom in grams.