Hydrogen H 1 1 Atomic number = 1 Mass number = 1 Hydrogen is the most common element in the Universe and is the fuel that stars use. Particle Charge Number Overall charge Proton +1 1 Electron -1

Helium He 2 4 Atomic number = 2 Mass number = 4 Helium is the second most common element in the Universe. Makes up 24% off all the mass in the Universe. Particle Charge Number Overall charge Proton +1 2 +2 Neutron Electron -1 -2

Lithium Li 3 7 Atomic number = 3 Mass number = 7 Helium is the second most common element in the Universe. Makes up 24% off all the mass in the Universe. Particle Charge Number Overall charge Proton +1 3 +3 Neutron 4 Electron -1 -3

Carbon C 6 12 Atomic number = 6 Mass number = 12 Carbon is present in all known life forms. Pure carbon can exist as diamond or graphite Particle Charge Number Overall charge Proton +1 6 +6 Neutron Electron -1 -6

Oxygen O 8 16 Atomic number = 8 Mass number = 16 The atmosphere is 21% oxygen. It is present in water. The human body is 65% oxygen. Particle Charge Number Overall charge Proton +1 8 +8 Neutron Electron -1 -8

Sodium Calcium Boron Aluminium Chlorine Beryllium Nitrogen Fluorine Use the template on the other side to create an element tile for a periodic table display. Choose an element from the list below. Your element tile needs: i) The name of your element. ii) The chemical symbol iii) The atomic number and mass number. iv) A picture of the atomic structure of that element. (Google: (Element) atom) Then look at the images. For example Google: Sodium atom. v) Complete the table showing the number of protons, neutrons and electrons and the overall charge. vi) Find out some interesting facts on that element. Elements to choose from: Sodium Calcium Boron Aluminium Chlorine Beryllium Nitrogen Fluorine Neon Magnesium Silicon Phosphorus Sulphur Argon Potassium Bromine Krypton Iodine Xenon

Atomic number = Mass number = Particle Charge Number Overall charge Proton +1 Neutron Electron -1