UPDATES 2025/26..
Save
What is the charge of a +1
proton?
What is the charge of a 0
neutron?
What is the charge of an -1
electron?
What is the relative mass 1
of a proton?
What is the relative mass 1
of a neutron?
What is the relative mass Very small
of an electron?
How many types of atoms Only one type
do elements contain?
Substances containing two or more different elements
What are compounds?
that are chemically bonded together
Substances containing two or more different elements
What are mixtures?
that are not chemically bonded together
What pattern is formed Chromatogram
from carrying out paper
chromatography?
, Which method of Filtration
separation is useful to
separate an insoluble
solid from a liquid?
Which method of Evaporation or Crystillisation
separation is useful to
separate a soluble solid
from a liquid?
Which method of Fractional distillation
distillation separates
liquids with similar boiling
points?
Who discovered that the Ernest Rutherford
plum pudding model was
wrong?
Who devised an Niels Bohr
experiment that proved
the existence of the
neutron?
To ensure that elements with similar properties stayed
Why did Mendeleev leave
in the same groups. The gaps indicated the existence
gaps in his Table of
of undiscovered elements and allowed Mendeleev to
Elements?
predict what their properties might be
How are the group The group number tells you how many electrons are
number and the number of in the outer shell of an element. E.g. sodium is in
electrons in the outer shell Group 1 therefore it has 1 electron on its outer shell
of an element related?
What kind of ions do Positive
metals form?
Where are the non-metals On the right hand side
on the periodic table?