Elements Flashcards
What is a compound
A compound is to two types of elements which have been mixed together
What is an element
An element is a substance that is made from up of all the same atoms
What do numbers next to symbols mean
How many parts or atoms it has compared to hydrogen which is one.
What is the name of the groups atoms sometimes form
Molecules
What is a pure substance
A element with only one type of atom throughout it
How many elements are listed on the periodic table
Over 100
What does homogeneous mean
A element that is uniform all the way through
What is a proton
A proton is a tiny particle smaller than an atom
What is a atomic number
The number of protons in each atom
What is a mixture
A combination of substances that do NOT include any chemical reaction
How is a mixture different from a compound
It is not chemically joined together and can be separated more easily.
