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WorksheetsAtoms
Total questions: 10
Worksheet time: 5mins
The atomic number...
decreases across a period
increases across a period
decreases down a group
increases down a group
The atomic numbers gives...
the number of protons
the number of neutrons
the number of electrons
the number of protons and neutrons
An atom is neutral because...
of the neutrons
the negative protons cancel the positive electrons
the negative electrons cancel the positive protons
protons have no charge
A neutron has a mass of
1u
-1u
0u
2u
An electron has a charge of
+1
0
-1
2
Elements are made up of
compounds
stars
hydrogen
atoms
Protons are found
outside the nucleus
in an orbit
inside the nucleus
in space
If Lead has 82 electrons, how many protons has it got?
0
41
cannot work it out
82
Why are calcium and barium similar?
they are in the same group
they are in the same period
they have the same number of electrons
they have similar sounding names
Which element is the odd one out?
Potassium
Gold
Arsenic
Mercury
