Elements vs. Compounds
This is a substance made up of only one type of atom.
Element
What element has the chemical symbol Fe?
Iron
A table that organizes elements according to their properties.
The Periodic Table
A substance formed when two or more different types of atoms chemically bond.
Compound
The formula C₆H₁₂O₆ represents a simple sugar, which is a _________ made of carbon, hydrogen, and oxygen.
Element or Compound
A letter that represents an element is called...
A chemical symbol
What is a chemical formula?
a substance made of multiple elements that are chemically bonded and whose formula shows the number of atoms of each element.
(Mg) Magnesium (MgCl2) Magnesium Chloride
Which is the compound? Which is the Element?
Explain.
Mg = Element
MgCl2 = Compound
A tiny number on the bottom right in a chemical formula is called a what?
A SUBSCRIPT
Sodium sulfite (Na2SO3) is used to produce many products. Which elements are represented in the formula AND how many atoms of each element are represented in the formula?
S (Sulfur) has 1
O (Oxygen) has 3
How can we find out how many atoms are in this formula H₂SO₄ ?
Count the atoms of each element then we add them all up.
True or False
All elements chemical symbols begin with a capital letter.
True. None of them begin with a lowercase letter!