Key words Flashcards

1
Q

Element

A

A substance made up of only one type of atom

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2
Q

Native element

A

An element that occurs naturally

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3
Q

Compounds

A

Two or more elements that are chemically joined together

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4
Q

Atom

A

The basic building blocks of an element that cannot be broken down

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5
Q

Periodic Table

A

A table of all the known elements in order of atomic number

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6
Q

Atomic number

A

Number of protons in an element

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7
Q

Atomic mass

A

Number of protons and neutrons

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8
Q

Ductile

A

Able to be stretched out to a thin wire

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9
Q

Malleable

A

Able to be bent without breaking

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10
Q

Sonorous

A

To make a sound like a bell when hit

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11
Q

Conductor

A

A material that allows heat to pass easily

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12
Q

Halogen

A

A group of non-metal elements

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13
Q

Salt

A

The type of chemical compound which is the product of a neutralisation reaction

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14
Q

Noble gas

A

Unreactive substances in group 8 of Periodic Table

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15
Q

Inert

A

Chemically unreactive

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16
Q

Metalloid

A

Show properties of metals and non-metals

17
Q

Semi-conductor

A

Material used in electronic circuits

18
Q

Crystalline

A

Solvent evaporates to leave solid crystals

19
Q

Solvent

A

The liquid in which a substance is dissolved in

20
Q

Radioactive

A

A material that emits nuclear radiation

21
Q

Extraction

A

To get metal from an ore

22
Q

Ore

A

The rock from which a metal is extracted

23
Q

Electrolysis

A

To separate using electricity

24
Q

Reduction

A

Reducing the amount of oxygen in a compound

25
Q

Melting point

A

The temperature at which a solid turns to a liquid

26
Q

Toxic

A

Poisonous

27
Q

Density

A

Mass per unit volume