Course Name: Chemistry I | Profesor: Silvia Alabarran |
Module: II | Activity: Homework 5 |
Date: 20/Sep/10 | Equipo: |
References:http://depa.pquim.unam.mx/QI/contenido/per12.htm http://www.mitecnologico.com/mecatronica/Main/MetalesAlcalinosYAlcalinoterreoshttp://www.uclm.es/profesorado/afantinolo/Docencia/Inorganica/Tema5/TransT5IQ.pdf |
1. : Describe non-metal’s general characteristics and properties.
2. Use various sources of information to investigate the main uses for elements within the alkalineearth metals (II A) and noble gases (VIII A) families.
3. Investigate how does a microwave oven work, and explain what happens to the molecules that participate in this microwave incidence.Process:
Characteristic | Non-metals |
Electrical conductivity | Poor |
Shine | The don´t reflec energy |
Magnetic | Nule |
Heat conductivity | Low |
Fusion Point | Lower than metals |When non-metals react with metals gain electrons and generate anions.
ALKALINE EARTH METALS (Be, Mg, Ca, Sr, Ba, Ra): Be is used in nuclear technology and in alloys with low density.
Ca isvery used for cleaning impures from other metals, also for making plaster and it´s present in our body.
Mg reacts with a kind of shining so for this is used for flashes and fireworks.
NOBLE GASES(He, Ne, Ar, Kr, Xe, Rn): Ne and Ar are very used in ilumination. Liquid Ne is used for refrigérate
Xe has uses in medicine for anesthetic
Microwave oven liberates microwaves. The microwavesinteract with water and other molecules in food and make vibrations, and that vibration produce heat.
Conclusion: Some elements can have different uses for the daily life but some others aredangerous for us.
Microwaves interact with certain particles but ¿what would happen if they interact too mucho with us?
We have to be very careful with the microwaves for avoid damages to ourselves.