Hello class today we are going to learn about the classification of matter.
First lets talk about elements. Elements are a substance of a single type of atom. One example of an element is Au which is also known as gold.
Now lets talk about compounds. Compounds are two or more different elements that are chemically bonded. One example of a compound is NaCI which is also known as salt.
We are on our last topic now which is molecules. A molecule is a group of two or more atoms held together by chemical bonds. An example of a molecule as an elemnt is N2 and an example of a molecule as a compound is NH3.
Thats it for today class you are dismissed have a good rest of your day and I´ll see you guys tomorrow.