Worksheetssummer science ( chemistry )
Total questions: 12
Worksheet time: 8mins
what are the three particles that make up an atom ?
proton , hydrogen , neutron
hydrogen , helium , carbon
positive , negative , neutral
proton , neutron , electron
what is the melting point of what in F & C
(a)
what is the charge of a proton ?
neutral
positive
negative
what charge does an electron have ?
negative
postive
neutral
rainbows
what is the charge of a neutron ?
positive
negative
neutral
teal
what is an element ?
an element is a pure substance that can't be chemically broken down
an element is a natural substance that you can find in nature
an element is the things you need to bake a cake
an element is a part or aspect of a molecule
a gas substance as fast moving particles that float around
true
false
a solid substance has ....
slower moving particles
1,080 mph moving particles
still particles
slightly vibrating particles
the melting point and the freezing point are the same thing
true
false
how many protons and electrons does helium have ?
1
12
2
6
how many protons and electrons does lithium have ?
1
3
7
9
is an atoms or molecules speed effected by the state of matter it is in
yes
no
