let's take a look at an element a compound and a mixture and see how they are different welcome to moomoomath and science an element is a pure substance in other words an element cannot be broken down into a simpler substance by physical or chemical means an element is made up of only one type of atom an atom consists of a proton neutron and an electron some common examples of elements would be carbon oxygen or iron the elements are arranged on the periodic table based on their number of protons for example sodium has 11 protons potassium has 19. the number of protons of an element always stays the same each element also has its own unique set of properties a compound is a pure substance of two or more elements chemically combined elements combined during a chemical change a particle of a compound is called a molecule when the elements combine chemically a new substance is created this this compound has different properties than the elements that make it up hydrogen and oxygen are gases but they combine to make liquid water here are some items that combine to make compounds table salt is sodium and chlorine glucose a type of sugar is made of carbon hydrogen and oxygen when elements create a compound they always join in a specific ratio the ratio of water is two hydrogen to one oxygen if a compound has a different ratio of hydrogen to oxygen then it is not water glucose a type of sugar has a ratio of 6 carbon to 12 hydrogen to 6 oxygen glucose will always have the same ratio compounds are all around you in the food you eat your school supplies and even yourself when two or more substances are mixed together but do not bond chemically they form a mixture a mixture can be separated by physical means air is a mixture of gases sand is a mixture of shells rock and even plastic there are two major types of mixtures a heterogeneous mixture is one in which you can visually see the different parts of the mixture sand is an example salad would be another example of a heterogeneous mixture a homogeneous mixture also sometimes called a solution is a mixture in which the composition is uniform throughout the mixture water is a homogeneous mixture because the dissolved salt is evenly distributed throughout alloys which are made up of two or more metals is another example this would include brass and bronze liquid soap is another example of a heterogeneous solution there are many ways that you can separate a solution for example you can use filtration distillation which involves heating the mixture to various boiling points and magnetism which involves passing a magnet over the mixture and removing the magnetic thanks for watching and remember kindness multiplies kindness be kind to someone today