Final Chemistry Vocab Quiz

What is the study of the interactions between substances called?

• Physics

• Biology

• Chemistry

• Astronomy

What is the smallest unit of matter, literally meaning 'indivisible'?

• Molecule

• Atom

• Electron

• Proton

What is a group of 2 or more atoms called?

• Ion

• Molecule

• Isotope

• Element

What are electrons on the outermost shell of an atom, which are available for bonding, called?

• Core Electrons

• Valence Electrons

• Free Electrons

• Bonding Electrons

What is a characteristic of matter that can be observed and measured without changing the chemical identity?

• Chemical Property

• Physical Property

• Reactivity

• Ionization Energy

What is a characteristic of a substance that is observed during a reaction in which the chemical identity of the substance is changed?

• Physical Property

• Atomic Radius

• Chemical Property

• Period

What is an atom that has gained or lost an electron(s) and now carries a charge called?

• Isotope

• Ion

• Molecule

• Alloy

What is an atom with a different number of neutrons and a different Atomic Mass than the most common form of an element called?

• Ion

• Isotope

• Molecule

• Metalloid

What is a representation of an atom showing only the element’s symbol and its valence electrons called?

• Lewis Dot Structure

• Bohr Model

• Electron Cloud Model

• Rutherford Model

What is an ion consisting of more than one atom called?

• Cation

• Anion

• Polyatomic Ion

• Noble Gas