Chemistry paper 1

HideShow resource information
  • Created by: parker123
  • Created on: 13-05-18 11:14
nucleus
positively charged, almost whole mass of atom concentrated in the nucleus
1 of 24
atomic number
tells us how many protons there are. on the bottom
2 of 24
mass number
total number of protons and neutron in the atom .
3 of 24
elements
consist of atoms with the same atomic number
4 of 24
isotopes
are different forms of the same element which have different number of neutrons
5 of 24
compounds
when elements react atoms combine with other atoms to from compounds
6 of 24
mixtures
there's no chemical bonds between different parts of the mixture
7 of 24
group 1 elements
are reactive, soft metals
8 of 24
alkali metals
form ionic compounds with non-metals
9 of 24
halogens
can form molecular compounds, and can form ionic bonds with metals, more reactive halogens will displace less reactive halogoens
10 of 24
group 0
are all inert, colourless gases
11 of 24
ionic compounds
have a regular lattice structure, they all have similar properties
12 of 24
covalent bonding
this is sharing electrons
13 of 24
polymers
are long chains of repeating units
14 of 24
giant covalent structures
are macromolecules
15 of 24
allotrope are carbon
diamonds is very hard; graphite contains sheets of hexagons; graphene is one layer of graphite; fullerenes from spheres & tubes
16 of 24
metallic bonding
involves delocalised electrons
17 of 24
titration
used to find out concentrations
18 of 24
displacement reactions
they are redox reactions, it involves kicking another one out of a compound, the RULE- a more reactive metal will displace a less reactive metal metal from it compounds
19 of 24
electrolysis
means the splitting up with electricity
20 of 24
exothermic reaction
heat is given out, reaction which transfers energy to the surroundings usually by heating this is show by a rise in temperature
21 of 24
endothermic reaction
heat is taken in, is one which takes in energy from the surroundings this is shown by a fall in temperature.
22 of 24
fuel cells
is a electrical cell that's supplies with a fuel & oxygen & uses energy from the reaction between them to produce electrical energy efficiently
23 of 24
hydrogen-oxygen fuel cells
involve a redox reaction, could be used in vehicles
24 of 24

Other cards in this set

Card 2

Front

tells us how many protons there are. on the bottom

Back

atomic number

Card 3

Front

total number of protons and neutron in the atom .

Back

Preview of the back of card 3

Card 4

Front

consist of atoms with the same atomic number

Back

Preview of the back of card 4

Card 5

Front

are different forms of the same element which have different number of neutrons

Back

Preview of the back of card 5
View more cards

Comments

No comments have yet been made

Similar Chemistry resources:

See all Chemistry resources »See all Analysing substances resources »