41
Alkaline Earth Metals
White lights
from burning
magnesium
compounds
This widely
used cement
contains powdered
magnesium oxide.
Chlorophyll
molecule
Chlorophyll is an important
molecule in plants and is
what makes them green.
At its centre sits a
magnesium atom,
which helps plants
convert sunlight into
energy in a process
called photosynthesis.
NN
N N
Mg
Uses MAGNESIUM IN CHLOROPHYLL
Magnesium carbonate, or magnesia, reacts
with acid in the stomach to settle indigestion.
Heating magnesia produces magnesium oxide,
which is one of the ingredients in cement.
Magnesium compounds are also used in
fireworks, and they burn hot with a white
flame. Salts composed of magnesium,
called Epsom salts, named after the place
in England where they were first mined,
work as a muscle relaxant. Magnesium
silicate, known as talc, is a soft mineral
used in body powders.
Laptop
This powder
makes skin
smooth and soft.
The magnesium alloy case of
this laptop is strong but lightweight.
The magnesium alloy body
of this camera is lightweight
and will not rust.
This indigestion
medicine is a
mixture of water
and magnesium
carbonate.
Magnesium
fireworks
Magnesium alloy
makes this wheel
strong and shiny.
Milk of magnesia
Po
rt
la
nd
(^) c
em
ent
Cr ystals containing
magnesium sulfate are
added to warm water
for a soothing bath.
Al
lo
y
w
he
el
Digital camer
a
Talcum^ pow
der
E
ps
om
sa
lts
040-041_Magnesium.indd 41 12/12/16 5:37 pm