AQA GCSE chemistry C1
What is the centre of an atom called? - correct answer ✔Nucleus
What are the charges on protons, electrons and neutrons - correct answer
✔Protons= +1
Electrons= -1
Neutrons= 0
What are the relative masses of protons, electrons and neutrons - correct
answer ✔Protons= 1
Electrons= 0.0005
Neutrons= 1
Why are atoms neutral? - correct answer ✔Because when the protons,
electrons and neutrons charge they equal 0 overall -1+1+0= 0 so the atom is
neutral
What is an element - correct answer ✔A substance containing only one type
of atom
What is a compound - correct answer ✔A substance made of two or more
elements chemically combined/ joined
What are the columns in the periodic table called and what do the elements in
these groups have in common - correct answer ✔The columns are called
groups and in each group all of the elements in a certain group have similar
chemical properties
What is the centre of an atom called? - correct answer ✔Nucleus
What are the charges on protons, electrons and neutrons - correct answer
✔Protons= +1
Electrons= -1
Neutrons= 0
What are the relative masses of protons, electrons and neutrons - correct
answer ✔Protons= 1
Electrons= 0.0005
Neutrons= 1
Why are atoms neutral? - correct answer ✔Because when the protons,
electrons and neutrons charge they equal 0 overall -1+1+0= 0 so the atom is
neutral
What is an element - correct answer ✔A substance containing only one type
of atom
What is a compound - correct answer ✔A substance made of two or more
elements chemically combined/ joined
What are the columns in the periodic table called and what do the elements in
these groups have in common - correct answer ✔The columns are called
groups and in each group all of the elements in a certain group have similar
chemical properties
