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Atoms and Elements

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Page 1: Atoms and Elements. Atoms Atoms are the “building blocks” of all matter and are the simplest form of molecule. They are all made up of protons, neutrons

Atoms and Elements

Page 2: Atoms and Elements. Atoms Atoms are the “building blocks” of all matter and are the simplest form of molecule. They are all made up of protons, neutrons

AtomsAtoms 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

Page 3: Atoms and Elements. Atoms Atoms are the “building blocks” of all matter and are the simplest form of molecule. They are all made up of protons, neutrons

ElementsIf 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

Page 4: Atoms and Elements. Atoms Atoms are the “building blocks” of all matter and are the simplest form of molecule. They are all made up of protons, neutrons

CompoundsCompounds are different to elements. They contain different atoms. Here are some examples:

Glucose

MethaneSodium

chloride (salt)

Page 5: Atoms and Elements. Atoms Atoms are the “building blocks” of all matter and are the simplest form of molecule. They are all made up of protons, neutrons

Some simple compounds…

Methane, CH4 Water, H2O

Carbon dioxide, CO2

Ethyne, C2H2Sulphuric

acid, H2SO4

Key

Hydrogen

Oxygen

Carbon

Sulphur

Page 6: Atoms and Elements. Atoms Atoms are the “building blocks” of all matter and are the simplest form of molecule. They are all made up of protons, neutrons

Elements and symbols 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

Page 7: Atoms and Elements. Atoms Atoms are the “building blocks” of all matter and are the simplest form of molecule. They are all made up of protons, neutrons

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


All matters made of atoms which consist of electrons, protons and neutrons. Protons and neutrons are in the nucleas and electrons are moving around

Atoms contain particles called protons, neutrons, and electrons

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