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C2 Chemistry > C2.6 In Your Element > Flashcards

C2.6 In Your Element Flashcards

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1
Q

chemical symbol

A

An abbreviation for an element which onsists of one, two or sometimes three letters.

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2
Q

electron

A

A negatively charged particle that surrounds the nucleus in an atom.

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3
Q

ductile

A

Can be stretched into wires.

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4
Q

giant ionic structure

A

A repeated regular arrangement of oppositely charged ions.

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5
Q

properties

A

The characteristics of a substance. Chemical properties describe how the substance reacts with other substances. Physical properties include information such as colour, melting point and state.

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6
Q

state symbols

A

Symbols used in chemical equations to show whether a substance is solid (s), liquid (l), gas (g) or dissolved in water, aqueous (aq).

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7
Q

proton

A

A positively charged particle found in the nucleus of all atoms.

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8
Q

halogen

A

A family of reactive non-metals found in Group 7 of the Periodic Table.

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9
Q

cathode

A

A negative electrode.

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10
Q

bond

A

An attractive force that holds atoms together in molecules and ions together in crystals.

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11
Q

neutron

A

Electrically neutral particle found in the nucleus of most atoms.

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12
Q

group

A

A column of the Periodic Table.

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13
Q

half equation

A

Equation to show the reaction at an electrode.

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14
Q

isotopes

A

Atoms of an element with the same number of protons and electrons but different numbers of neutrons.

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15
Q

ionic compound

A

A substance made of oppositely charged ions.

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16
Q

electrode

A

A rod of conductive material used in electrolysis, for example, graphite or platinum.

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17
Q

particle

A

A tiny piece of matter, such as an atom or molecule.

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18
Q

atom

A

A particle that is the smallest part of an element that can exist. An atom consists of protons and neutrons in a nucleus surrounded by electrons.

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19
Q

ion

A

An atom or group of atoms with an electrical charge. Ions can either be positively or negatively charged due to losing or gaining electrons.

20
Q

alkali metal

A

An element found in Group 1.

21
Q

chemical reaction

A

A chemical change in which new substances are formed but there is no change in the number of atoms of each element.

22
Q

electron configuration

A

The arrangement of electrons in shells around the nucleus.

23
Q

raw material

A

A starting substance for the manufacture of a particular chemical.

24
Q

binary salt

A

A compound of a metal and a non-metal.

25
Q

period

A

A row of the Periodic Table.

26
Q

relative atomic mass

A

The mass of an atom compared to the mass of a carbon atom, which has a relative atomic mass of 12.

27
Q

element

A

A substance made of only one type of atom. An element cannot be turned into another element or anything simpler using a chemical reaction.

28
Q

conductivity

A

A property of a substance that describes its ability to allow energy (electricity or heat) to pass through it.

29
Q

alkaline

A

A substance that turns universal indicator paper blue and has a pH greater than 7.

30
Q

malleable

A

Can be bent or hammered into shape without breaking.

31
Q

mass number

A

The total number of protons and neutrons in the nucleus of an atom. Also called nucleon number.

32
Q

reactive

A

Likely to react with other substances.

33
Q

shell

A

Space around a nucleus that can be occupied by electrons, usually drawn as a circle.

34
Q

electron shell diagram

A

A picture that shows the arrangement of electrons in shells around the nucleus.

35
Q

atomic number

A

The number of protons (positively charged particles) in the nucleus of an atom.

36
Q

decompose

A

To break down a compound into simpler substances.

37
Q

lattice

A

The arrangement of ions in a regular pattern giving crystals their regular shape.

38
Q

nucleus

A

The positively charged centre of an atom.

39
Q

ionic bond

A

Force between oppositely charged ions.

40
Q

alloy

A

A mixture of metals or metals and non-metals.

41
Q

anode

A

A positive electrode.

42
Q

electrolysis

A

The breakdown of an ionic compound into simpler substances using electricity.

43
Q

compound ion

A

An electrically charged group of two or more different atoms. For example, the sulphate ion SO consists of one sulphur atom and four oxygen atoms, with two negative charges overall.

44
Q

solution

A

The mixture formed when a substance dissolves in water.

45
Q

Periodic Table

A

A chart in which all the elements are put in order of increasing atomic number, with elements that have similar chemical properties arranged in groups.

46
Q

noble gas

A

An element found in Group 0.

C2 Chemistry (4 decks)

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