C1- Atoms, Elements And Compounds Flashcards
0
Q
What number of elements do we have on earth
A
About 100
1
Q
How do we find the number of neutrons of an element?
A
Mass number-atomic number
2
Q
How do we have so many different compounds?
A
Different elements combine with other elements to make new compounds.
3
Q
What is an element
A
An element is the simplest type of substance
4
Q
What is a compound
A
A compound is when you have two or more different elements bonded together
5
Q
What is a molecule
A
A molecule is when you have two or more atoms bonded together- they can be the same element, they may not
6
Q
What is a mixture
A
A mixture is when you have different elements or compounds together, but not chemically bonded
