SNC1W Chemistry Review

A set of vocabulary flashcards based on the SNC1W Chemistry Review notes, covering key terms, subatomic particle properties, and basic chemical formulas.

Atom

The basic unit of a chemical element.

Compound

A substance formed when two or more chemical elements are chemically bonded together.

Density

The mass per unit volume of a substance, defined by the formula $D = \frac{M}{V}$.

Atomic mass

The mass of an atom of a chemical element expressed in atomic mass units.

Ductile

A physical property of a material that allows it to be pulled out into a long wire.

Molecule

A group of atoms bonded together, representing the smallest fundamental unit of a chemical compound.

Atomic number

The number of protons found in the nucleus of an atom.

Electron

A subatomic particle that surrounds the nucleus and has a relative weight of $0$.

Neutron

A subatomic particle located in the middle of the atom (nucleus) with a relative weight of $1$.

Metalloids

Elements that have properties of both metals and non-metals.

Metals

A class of elements characterized by physical properties such as lustre, malleability, and ductility.

Physical property

A characteristic of a substance that can be observed or measured without changing the identity of the substance.

Proton

A subatomic particle located in the middle of the atom (nucleus) with a relative weight of $1$.

Reactivity

The tendency of a substance to undergo a chemical change.

Solution

A homogeneous mixture of two or more substances.

Bohr-Rutherford diagram

A visual representation of an atom that shows the location of protons, neutrons, and electrons.

Element

A pure substance consisting of only one type of atom.

Non-metals

Elements that generally lack metallic properties, such as being brittle rather than malleable.

Group

A vertical column in the periodic table.

Nucleus

The central part of an atom containing protons and neutrons.

Valence electrons

The electrons located in the outermost shell of an atom.

Viscosity

A physical property describing a fluid's resistance to flow.

Brittle

A physical property describing a material that breaks or shatters easily.

Ion

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

Chemical change

A change where something new is made.

Lustre

A physical property describing the way light reflects off the surface of a substance (shininess).

Particle Theory of Matter

A theory that describes the composition and behavior of matter in terms of particles.

Chemical property

A characteristic of a particular substance that can be observed during a chemical reaction.

Malleable

A physical property of a material that allows it to be hammered or rolled into thin sheets.

Period

A horizontal row in the periodic table.

Mixture

A material made up of two or more different substances which are not chemically combined.

Physical change

A change where nothing new is made.

Density Formula for Mass

The rearranged density formula used to find mass, expressed as $M = V \times D$.