AQA CHEMISTRY PAPER 1 LATEST 2025 WITH QUESTIONS
AND CORRECT VERIFIED ANSWERS GRADED A+
GUARANTEED PASS
Name three properties of Non-Metals - CORRECT ANSWERS--Weak
-Bad conductors of heat and electricity
-Low melting and boiling points
State the four different ways of separating mixtures - CORRECT ANSWERS-Four different ways
of separating mixtures are filtration, crystallisation, distillation or chromatography
Describe the process of filtration - CORRECT ANSWERS-Pour your mixture onto the filter
paper, the liquid simply passes through the filter paper into the flask. The insoluble solid cannot pass
through and so it stays on the paper
Describe the process of crystallisation - CORRECT ANSWERS-Use the method of filtration to
filter off any excess soluble solid. Evaporate the mixture then transfer the hot mixture onto a dish.
Crystals are formed when the mixture has cooled
Describe the process of simple distillation - CORRECT ANSWERS-First we evaporate the
mixture by heating it, the dissolved solid then vaporises. These vapours condense in the condenser, the
dissolved solid then flows into the beaker and liquid stays in the flask
Describe the process of chromatography - CORRECT ANSWERS-Take a strip of filter paper and
draw a line on the bottom of the paper. Put a small drop of ink on the line, take a jar full of water up to
the line and put the filter paper in. As the water moves up we see different colours on the paper these
are the dyes in the ink
What were the early ideas of the structure of atoms? - CORRECT ANSWERS-Early ideas of the
structure of atoms stated that they are tiny spheres that cannot be divided
What is the plum pudding model? - CORRECT ANSWERS-The plum pudding model is what
scientists suggested is the structure of atoms is after the discovery of the electron
,Describe the plum pudding model - CORRECT ANSWERS-The plum pudding model suggested
that an atom is a ball of positive charge with negative electrons in embedded in it
Describe how Rutherford carried out the gold foil experiment - CORRECT ANSWERS-
Rutherford took a piece of gold foil, he then fired tiny positive alpha particles at the gold foil
What did Rutherford observe in the experiment? - CORRECT ANSWERS-Rutherford observed
that most of the particles when straight through the gold foil and sometimes the alpha particles bounce
back of the gold foil
What did Rutherford discover from these observations? - CORRECT ANSWERS-Rutherford
discovered that atoms are mainly empty space as most of the alpha particles went straight through the
gold atoms and that the nucleus of the atom is very small as only a small number of alpha particles
bounce back
Describe the structure of the nuclear model - CORRECT ANSWERS-The nuclear model states
that most of an atom is empty space, in the centre is the nucleus which contains protons and neutrons
around the edge we find electrons
What is the Relative mass and the relative charge of protons, neutrons and electrons? - CORRECT
ANSWERS-
Why do atoms have the same number of protons as electrons? - CORRECT ANSWERS-Because
atoms have have no overall charge
What is an Ion? - CORRECT ANSWERS-An ion is a charged particle, it is possible to get positive
or negative ions
What is an Isotope? - CORRECT ANSWERS-Atoms of the same element with different numbers
of neutrons are called isotopes
, What is the mass number of an element? - CORRECT ANSWERS-The mass number is the
number on the top of an element it is the number of proton and neutrons combined
What is the atomic number of an element? - CORRECT ANSWERS-The atomic number is the
number on the bottom it is number of protons in an atom, which is the same as the number of electrons
How many electrons can you fit in the first, second and third shells? - CORRECT ANSWERS-
Shell 1 : 2 electrons
Shell 2 : 8 electrons
Shell 3 : 8 electrons
What is an Electronic structure? - CORRECT ANSWERS-A set of number to show the
arrangement of electrons in their shells, eg. [2,6]
C2 The periodic table - CORRECT ANSWERS-
What did John Newlands periodic table look like? - CORRECT ANSWERS-He arranged the
elements in order of increasing atomic mass, he saw that every eighth element reacted in a similar way
What did Dmitri Mendeleev's periodic table look like? - CORRECT ANSWERS-He arranged the
elements in order of increasing atomic mass, he switched the order of some elements to the fitted in the
patterns of other elements. He left gaps for undiscovered elements
What does the modern periodic table look like? - CORRECT ANSWERS-Elements are arranged
in order of atomic number, the elements are organised in groups and periods which have the similar
properties
Why are elements in the periodic table grouped the way they are? - CORRECT ANSWERS-
Elements with similar chemical properties are grouped together in groups
Why do elements in a group have similar chemical properties? - CORRECT ANSWERS-
Elements in a group have similar chemical properties because they all have the same number of
electrons in their outer energy level therefore react similarly
AND CORRECT VERIFIED ANSWERS GRADED A+
GUARANTEED PASS
Name three properties of Non-Metals - CORRECT ANSWERS--Weak
-Bad conductors of heat and electricity
-Low melting and boiling points
State the four different ways of separating mixtures - CORRECT ANSWERS-Four different ways
of separating mixtures are filtration, crystallisation, distillation or chromatography
Describe the process of filtration - CORRECT ANSWERS-Pour your mixture onto the filter
paper, the liquid simply passes through the filter paper into the flask. The insoluble solid cannot pass
through and so it stays on the paper
Describe the process of crystallisation - CORRECT ANSWERS-Use the method of filtration to
filter off any excess soluble solid. Evaporate the mixture then transfer the hot mixture onto a dish.
Crystals are formed when the mixture has cooled
Describe the process of simple distillation - CORRECT ANSWERS-First we evaporate the
mixture by heating it, the dissolved solid then vaporises. These vapours condense in the condenser, the
dissolved solid then flows into the beaker and liquid stays in the flask
Describe the process of chromatography - CORRECT ANSWERS-Take a strip of filter paper and
draw a line on the bottom of the paper. Put a small drop of ink on the line, take a jar full of water up to
the line and put the filter paper in. As the water moves up we see different colours on the paper these
are the dyes in the ink
What were the early ideas of the structure of atoms? - CORRECT ANSWERS-Early ideas of the
structure of atoms stated that they are tiny spheres that cannot be divided
What is the plum pudding model? - CORRECT ANSWERS-The plum pudding model is what
scientists suggested is the structure of atoms is after the discovery of the electron
,Describe the plum pudding model - CORRECT ANSWERS-The plum pudding model suggested
that an atom is a ball of positive charge with negative electrons in embedded in it
Describe how Rutherford carried out the gold foil experiment - CORRECT ANSWERS-
Rutherford took a piece of gold foil, he then fired tiny positive alpha particles at the gold foil
What did Rutherford observe in the experiment? - CORRECT ANSWERS-Rutherford observed
that most of the particles when straight through the gold foil and sometimes the alpha particles bounce
back of the gold foil
What did Rutherford discover from these observations? - CORRECT ANSWERS-Rutherford
discovered that atoms are mainly empty space as most of the alpha particles went straight through the
gold atoms and that the nucleus of the atom is very small as only a small number of alpha particles
bounce back
Describe the structure of the nuclear model - CORRECT ANSWERS-The nuclear model states
that most of an atom is empty space, in the centre is the nucleus which contains protons and neutrons
around the edge we find electrons
What is the Relative mass and the relative charge of protons, neutrons and electrons? - CORRECT
ANSWERS-
Why do atoms have the same number of protons as electrons? - CORRECT ANSWERS-Because
atoms have have no overall charge
What is an Ion? - CORRECT ANSWERS-An ion is a charged particle, it is possible to get positive
or negative ions
What is an Isotope? - CORRECT ANSWERS-Atoms of the same element with different numbers
of neutrons are called isotopes
, What is the mass number of an element? - CORRECT ANSWERS-The mass number is the
number on the top of an element it is the number of proton and neutrons combined
What is the atomic number of an element? - CORRECT ANSWERS-The atomic number is the
number on the bottom it is number of protons in an atom, which is the same as the number of electrons
How many electrons can you fit in the first, second and third shells? - CORRECT ANSWERS-
Shell 1 : 2 electrons
Shell 2 : 8 electrons
Shell 3 : 8 electrons
What is an Electronic structure? - CORRECT ANSWERS-A set of number to show the
arrangement of electrons in their shells, eg. [2,6]
C2 The periodic table - CORRECT ANSWERS-
What did John Newlands periodic table look like? - CORRECT ANSWERS-He arranged the
elements in order of increasing atomic mass, he saw that every eighth element reacted in a similar way
What did Dmitri Mendeleev's periodic table look like? - CORRECT ANSWERS-He arranged the
elements in order of increasing atomic mass, he switched the order of some elements to the fitted in the
patterns of other elements. He left gaps for undiscovered elements
What does the modern periodic table look like? - CORRECT ANSWERS-Elements are arranged
in order of atomic number, the elements are organised in groups and periods which have the similar
properties
Why are elements in the periodic table grouped the way they are? - CORRECT ANSWERS-
Elements with similar chemical properties are grouped together in groups
Why do elements in a group have similar chemical properties? - CORRECT ANSWERS-
Elements in a group have similar chemical properties because they all have the same number of
electrons in their outer energy level therefore react similarly
