Science - Chemistry Test - Term 2

Electron

Negatively charged particle in the atom

Proton

Positively charged particle in the nucleus

Neutron

Neutral particle in the nucleus, similar mass to a proton

Atom

The smallest unit of an element, retaining it’s properties The basic building block of matter, consisting of protons, neutrons, and electrons. It forms the basic structure of chemical substances.

Element

A pure substance made up of only one type of atom and cannot be broken down further.

Molecule

A group of two or more atoms bonded together, they can be the same or different types of atoms.

Compound

A substance made of identical molecules with two or more atom types.

Density

The amount of matter packed into a given space

Diffusion

The movement of particles from high to low concentration

Simple Lattice

Structure where particles are arranged in a repeating pattern.

Mixture

A combination of two or more substances that are not chemically bonded together.

Sublimation

Process of solid turning into a gas

Deposition

Process of gas turning into a solid

Melting

Process of solid turning into a liquid

Evaporation

Process of liquid turning into a gas

Condensation

Process of gas turning into a liquid

Freezing/Solidifying

Process of liquid turning into a solidH

H

Hydrogen

He

Helium

C

Carbon

N

Nitrogen

O

Oxygen

Ne

Neon

Na

Sodium (natrium)

Mg

Magnesium

Al

Aluminum

Si

Silicon

S

Sulfur

Cl

Chlorine

Ca

Calcium

Mn

Manganese

Fe

Iron (Ferrum)

Ni

Nickel

Cu

Copper (Cuprum)

Zn

Zinc

Ag

Silver (Argentum)

Sn

Tin (Stannous)

W

Tungsten (Wolfrom)

Au

Gold (Aurum)

Hg

Mercury (Hydragyrum)

Pb

Lead (Plumbum)