Electronic Technology - Camcorder
STSE Assignment By: Maham Ahmed
Thinking and Inquiry
1. What specific elements (metals and metalliods) make up the device?
Elements that are found in a camcorder include:
Aluminum (Al) - Used in the base
Magnesium (Mg) - Used in the flash
Silicone (Si) - Found in the chips in the camcorder
Phosphorus (P) - Makes up the glass in the screen
Germanium (Ge) - Found in the camera lenses
2. Where specifically do these elements come from in the world?
Is found in Australia, Brazil, Suriname, Jamaica and other parts of the world
Is found in seawater and brines (water saturated in salt), as well as in earth deposits
Is found in the Earth's crust
Comes from Morocco, China, South Africa, Jordan and the United States
Comes from China, Russia and the United States
3. Choose any one element from Q.1, and describe its physical and chemical properties which makes it suitable to use in this device.
- Conducts electricity
- Is ductile and malleable
- Has a high melting point
- Has a low density
- Not very reactive with water
- Resistant to corrosion
- When air is moist, it slowly combines with oxygen and forms aluminum oxide, and also forms a coating which prevents the metal from further corrosion or rusting
4. Is your device easily recycled? If so, explain the process. If not, what happens to your device after its use is over?
If you no longer use a camcorder and want to get rid of it, you have to give it to company that collects old electronics. They will either recycle or re-use the materials used in the device, and it is quite simple.
Camcorders are made up of different elements and some metals that can be recycled. The metal is reusable and can be turned into different items.
They can contain toxic chemicals that are very bad for the environment and if the camcorder is thrown into the garbage, these chemicals will leak into the landfill, so it is very important to drop them off to someone who collects these and handles them properly.
1. Draw the Bohr Rutherford diagram of the neutral atom, possible ion, and the Lewis dot diagram.
2. Name the elements with which it easily reacts and forms compounds. Give the formulas of those compounds.
Aluminum easily reacts with oxygen, chlorine, bromine, and iodine.
Aluminium Oxide - Al2O3
Aluminium Chloride - AlCl3
Aluminium Bromide - AlBr3
Aluminium Iodide- AlI3