8 e atoms and elements (whs)
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04/08/23
Atoms and ElementsAtoms and Elements
W Richards
Worthing High School
04/08/23
AtomsAtomsAtoms are the “building blocks” of all matter and are the simplest form of molecule. They are all made up of protons, neutrons and electrons. They look something like this:
The Nucleus – this contains neutrons and protons
Electrons – these orbit around the nucleus
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ElementsElementsIf a solid, liquid or gas is made up of only one type of atom we say it is an element. For example, consider a tripod made up of iron:
These atoms are ALL iron – there’s
nothing else in here
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CompoundsCompoundsCompounds are different to elements. They contain different atoms. Here are some examples:
Glucose
Methane
Sodium chloride (salt)
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Some simple Some simple compounds…compounds…
Methane, CH4 Water, H2O
Carbon dioxide, CO2
Ethyne, C2H2Sulphuric
acid, H2SO4
Key
Hydrogen
Oxygen
Carbon
Sulphur
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Elements and symbols Elements and symbols that you should know:that you should know:
Part 1 – The obvious ones:
1) Hydrogen
2) Helium
3) Lithium
4) Beryllium
5) Boron
6) Carbon
7) Nitrogen
8) Oxygen
9) Fluorine
10)Neon
11)Magnesium
12)Aluminium
13)Silicon
14)Phosphorus
H
He
Li
Be
B
C
N
O
F
Ne
Mg
Al
Si
P
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Some more obvious ones:15)Sulphur
16)Chlorine
17)Argon
18) Calcium
19) Zinc
The less obvious ones:1) Sodium
2) Potassium
3) Iron
4) Copper
5) Silver
6) Tin
7) Gold
8) Mercury
9) Lead
S
Cl
Ar
Ca
Zn
Na
K
Fe
Cu
Ag
Sn
Au
Hg
Pb
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