Hey there people!!!
Hm...
Sorry for not updating...
Been busy for all this while...
Things that we have learnt for all these months is:
Atoms, Compounds, Mixtures
(Chapter 1) :)
What is Atoms??
Atom is a small positively charged nucleus at its centre with negatively charged electrons continually moving around the nucleus.
Has different types and sizes.
The most common shape that can used to represent an Atom will be a circle.
Next......
Elements
What is an Element?
Element is a pure substance that is made up of only 1 kind of atom.
Often known by different names in different languages but has only 1 chemical symbol.
Cannot be split into 1 or more simpler substances by chemical reactions.(Matter)
Compounds
Compound is made up of 2 or more elements chemically combined together.
Formed by chemical reactions.
Has properties that are different from e properties of its constituent elements.
Can ONLY be broken down into simpler substances by chemical methods.
Example: Decomposition.
Atoms
Compounds
and...
Elements!
