Chapter 4 Flashcards
Element
A substance made up of only one type of atom
Native element
An element that occurs naturally
Compound
Two or more elements that are chemically joined together such as water (H2O)
Atom
The basic building block of an element that cannot be broken down
Periodic Table
A table of all the known elements in order of atomic number
Period
A horizontal row of elements in the periodic table
Group
A vertical column of elements in the periodic table
Atomic number
The number of an element in the periodic table
Atomic mass
The number related to the mass of one atom in an element
Ductile
Able to be stretched out to a thin wire
Malleable
Able to be bent without breaking
Sonorous
To make a sound like a bell when hit
Conductor
A material that allows heat to pass easily
Halogen
A group of non-metal elements
Salt
The type of chemical compound which is the product of a neutralisation reaction
Noble gas
An unreactive substance in group 8 of the periodic table
Inert
To be chemically unreactive
Metalloid/semi metal
When an element shows the properties of metals and non metals
Semiconductor
A material used in electronic circuits
Crystalline
When a solvent evaporates to leave crystals of solid
Radioactive
The description of a material that emits nuclear radiation
Extraction
To get a metal from an ore
Ore
The rock from which a metal is extracted
Electrolysis
To separate using electricity
