WorksheetsAtoms, elements and compounds S1
Total questions: 20
Worksheet time: 13mins
1 A substance made up of two or more chemically combined elements is —
an element
mixture
compound
solution
Hydrogen
Hy
H
Hr
Hn
Iron
Ir
In
Fe
FE
Potassium
P
K
Pt
k
Which is the following is a compound?
Nitrogen
Carbon dioxide
Aluminium
Sodium
The center of the atom.
Has protons + neutrons.
neutron
nucleus
electron
atom
Has a positive charge.
Found in the nucleus.
neutron
electron
nucleus
proton
Has a negative charge.
Found OUTSIDE of the nucleus.
proton
neutron
electron
nucleus
Has no charge ( neutral ).
Found in the nucleus.
proton
neutron
electron
nucleus
This tells you the size of an atom. Add together protons and neutrons.
Protons + Neutrons
element
atom
proton
atomic mass
_______ is used to separate a solid from a liquid in which it is suspended.
filtration
distillation
suspension
colloid
When two or more substances are combined so each can be separated by physical means, the result is a(n) _____.
chemical change
compounds
mixture
element
________ is the ability to dissolve in water.
Conductivity
Magnetism
Solubility
Reflectivity
Are these Jellybeans an example of a Mixture?
Yes
No
A solution is made when one substance _________ in another.
settles at the bottom
moves
dissolves
is suspended
What does the diagram show?
element
compound
mixture
What does the picture show?
an element
a compound
a mixture
Are these compounds?
YES
NO
