Metals

Question 1

Where are metals found in the periodic table?

Answer 1

left hand side

Question 2

ionisation energy of metals

Answer 2

low

Question 3

do metals lose or gain electrons? why?

Answer 3

tend to lose valence electrons in order to satisfy the octet rule

Question 4

octet rule

Answer 4

gain valence shell with 8 electrons

Question 5

what type of ions do metals form?

Answer 5

positive ions (cation)

Question 6

metalloids

Answer 6

look like metals
have some metal properties
some non-metal properties

Question 7

elemental metals

Answer 7

all atoms have same atomic number but can be isotopes

Question 8

do elemental metals lose or gain electrons?

Answer 8

lose valence electrons

delocalise

Question 9

metallic bonding

Answer 9

the electrostatic attraction between a lattice of positive ions and delocalised electrons

Question 10

in what direction does metallic bonding work?

Answer 10

non-directional

Question 11

is the bond affected if ions or electrons move around?

Answer 11

no

Question 12

how does ion charge affect bond strength?

Answer 12

higher charge ion = stronger attraction

Question 13

how does radius affect bond strength?

Answer 13

smaller radius = stronger attraction

Question 14

alloy

Answer 14

mixture of metals, more than one element mixed together

Question 15

What is the purpose of alloys?

Answer 15

enhances a given property

Question 16

why do metals conduct electricity as solids and liquids?

Answer 16

delocalised electrons are very mobile

can move through the metal structure

Question 17

metals are malleable

Answer 17

metallic bond non-directional so lattice and electrson can move but bonding remains in tact as the shape changes

Question 18

malleable

Answer 18

shaped by pressure

Question 19

melting point increases across period

Answer 19

higher charge so require more energy to melt

Question 20

melting point decreses down a group

Answer 20

same charged ion
same number of delocalised electrons
ionic radius increases as number of shells increases
therefore less energy required to overcome bonding

Question 21

alloys have properties different to the metals they’re made from

Answer 21

non-directional bonding means lattice can be disturbed but still have attraction
different packing of cations
leads to different properties

Question 22

Why are metals shiny and lustrous?

Answer 22

delocalised electrons in metal structure reflect light?

Question 23

How are alloys produced?

Answer 23

adding one metal to another in molten state so atoms can mix

Question 24

How are alloys possible?

Answer 24

non-directional nature of delocalised electrons

lattice can accomodate ions of different sizes