Mind Maps ... Acids~Alkali

Hey Guyz ... Check this out ! These are my MindMaps of the topic called `Acids and Alkali `

Separation Techniques :P

3-D Helium Atom Model

Hey Guyz...check this out !

This is my Helium atom model that I created myself. I did it myself and seriously I did it at a last minute. I had 1 whole month and I just started to do this atom model at the last 4 days. 

Materials I used : :

• Metal Wire
• Ping Pong Balls
• Clay
• Scotch Tape

I bought all this items at a nearby shop. Then I started to poke holes in the ping pong balls. Then I shaped the wires to become circles. I made two of them. Then I poked the wire into the ping pong ball. Then I connected the two circle wires in between and sticked it together with the scotch tape. Then I covered the scotch tape with the clay.

Tadaa....This is how I made a 3-D Helium atom Model . 

Elements , Compounds , Mixtures

Atoms & Molecules - RECAP

Elements , Compounds , Mixtures

Elements

->  Elements only contain one type of atom and a list of elements is the Periodic Table .

Compound

-> A mix of two or more atoms .

Mixture

-> Combination of two or more compound / molecule .


Elaboration of Elements , Compounds , Mixtures

Differences between metals and non - metals

DIFFERENCES BETWEEN METALS AND NON-METALS

Properties of metals

Strong
Malleable and ductile
React with oxygen to form basic oxides
Sonorous
High melting and boiling points
Good conductors of electricity
Good conductors of heat
Mainly solids at room temp. Exception mercury - liquid at room temp.
Shiny when polished
When they form ions, the ions are positive
High density Properties of Non- metals  Brittle React with oxygen to form acidic oxides Dull sound when hit with hammer Low melting and boiling points Poor conductors of electricity Poor conductors of heat Solids, liquids and gases at room.temp. Dull looking When they form ions, the ions are negative - except hydrogen that forms a positive ion, H+. Low density http://www.youtube.com/watch?v=JR4d08DaPz4

Hi Guyz....I'm Paveen...Class 1E3,....
Just a simple note about myself..
I love to play soccer and floorball....
My favorite food is Nasi Lemak....
My CCA is Floorball ...
I love Science..Sci Bio... SiA...DnT...
That's a short note about me <3