Metals

Question 0

Malleable

Answer 0

Can be bent/beaten into sheets

Question 1

Metal

Answer 1

A giant structure of positive ions (cations) surrounded by a sea of localised electrons
Metal is a metal unless it’s an ion (part of ionic compound/ionically bonded)

Question 2

Ductile

Answer 2

Can be drawn into wires

Question 3

Delocalised electrons

Answer 3

From metal atoms which become metal ions

Cause most properties of metals except sonorous (and high melting points)

Question 4

Sonorous

Answer 4

Can conduct sound vibrations

Physics aspect - not vital

Question 5

Alloy

Answer 5

A substance consisting of two substances, at least one of them a metal, mixed together, with different properties to those of the substances involved

Question 6

Intra molecular forces

Answer 6

Within a molecule/compound/unit

In ionic, covalent and metallic bonds

Question 7

Inter molecular forces

Answer 7

Between molecules

3 major types of weaker force than the others - only relevant to simple covalent molecules

Question 16

Reactivity series

Answer 16

Higher a metal is, the more reactive it is
Generally lower in the group (1+2 mostly) are most reactive and the lower the group number the more reactive it is
Reactive if oxidise to metal ion - reactive usually found as ions, unreactive usually pure; reactive metal will DISPLACE OXYGEN from the oxide of a less reactive metal (inc CARBON and HYDROGEN - nonmetals)
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Potassium (K)
Sodium (Na)
Calcium (Ca)
Magnesium (Mg)
Aluminium (Al)
CARBON (C)
Zinc (Zn)
Iron (Fe)
Nickel (Ni)
Tin (Sn)
Lead (Pb)
HYDROGEN (H) - up to here metals react with water (can be very slow or require extra energy eg. heat ...steam); often form an oxide layer
Copper (Cu)
Mercury (Hg)
Silver (Ag)
Gold (Au)
Platinum (Pt)

Question 17

Oxidation

Answer 17

The loss of electrons

Question 18

Reduction

Answer 18

The gain of electrons

Question 19

Redox

Answer 19

A reaction with REDuction and OXidation occurring

Question 20

Oxidising agent

Answer 20

Makes something else oxidise eg. Oxygen

Question 21

Reducing agent

Answer 21

Makes something else reduce eg. Carbon

Question 22

Sacrificial

Answer 22

More reactive metals give (iron) electrons if any lost

=chemical protection in bikes