1. What are these elements
What are these elements? Fe, Co, Ni, Hg, Zn, Ti, W, Cu, Ag, Au What do you notice about the position of these elements

2. Transition metals are found here!
Make sure this is labelled on your periodic table at the back of your book!

3. What do you think some of their properties might be?
Variable Oxidation States
Good conductors of heat
High melting points (Except Hg)
Coloured compounds
What do you think some of their properties might be?
Hard and strong
Malleable (Can be moulded into shapes)
Good conductors of electricity

4. The Nobel Gases
The Noble Gases were discovered and characterized by William Ramsay in the late 19th century.
The noble gases are found in group 0 or sometimes known as group 8. What does this tell us about the number of electrons in their outer shell
The entire group has a valency of zero.

5. monoatomic non-metal gases at room temperature.
high ionization energies.
very stable
full valence electron shells
Do not combust or readily form compounds with other elements
low boiling points,
But we’re not useless!!!
We’re unreactive!

6. Helium Bio: Helium Proton number: 2 Atomic mass: 4 Electron config: 2
Uses: Used in balloons and airships. It is much less dense than air, so balloons filled with it float upwards.
Helium

7. Neon Bio: NEON Proton number: 10 Atomic mass: 20 Electron config: 2,8
Used in advertising signs, it glows when electricity is passed through it. Different coloured neon lights can be made by coating the inside of the glass tubing of the lights with other chemicals.
Neon
Fastfood and in signs

8. Argon Bio: Proton number: 18 Atomic mass: 40 Electron config: 2,8,8
Used in light bulbs. The very thin metal filament inside the bulb would react with oxygen and burn away if the bulb were filled with air instead of argon. Argon stops the filament burning away because it is unreactive.
Argon

9. Krypton Bio: Proton number: 36 Atomic mass: 84
Electron config: 2,8,18,8
Used in lasers. Krypton lasers are used by surgeons to treat certain eye problems and to remove birthmarks.
Krypton

10. Xenon Bio: Proton number: 54 Atomic mass: 131
Electron config: 2,8,18,18,8
Xenon is used in flashlights and lamps and as a general anaesthetic, it is used in lasers.
Xenon

11. Radon Bio: Proton number: 86 Atomic mass: 222
Electron config: 2,8,18,32,18,8
Radon is extremely rare and has harmful radio-isotopes. Therefore, it is both very difficult to study and to use practically. However, it is used in some forms of aggressive cancer treatment.
Radon

12. The Nobel Gases making parties more interesting since 1898!