Metals and non-metals.
Lead, magnesium, aluminum, and silicon are different elements, each containing an unique number of protons in the nucleus as well as different numbers of valence shell electrons that influence how they react with other elements and form bonds. Elements are also classified into types depending on their properties and position in the periodic table. Magnesium is an alkaline earth metal, which are soft and silver coloured. Lead, on the other hand, is a heavy metal. Aluminum is classified more ambiguously under 'other metals', and silicon is a metalloid.
Plastic is not an element. To be an element, a substance must have all the same type of atom. Once it has this, it can go on the Periodic Table. So, as plastic has many different types of atom in it, it's not an element.
Sand and water mixed is a mixture. Elements are substances with only one type of atoms. Compounds are substances made up of chemically bonded particles. Since sand and water are neither of these, it must be a mixture.
wind rain water storms
Elements which have two or more different types of atoms are known as multi-atomic elements. eg; HClO4, HNO3 etc.
Elements from the periodic table. There are many different types of metals.
Metals present in the periodic table are conductors.
I can find only two types The Mendeleves Periodic table based on Atomic weight of elements and The Modern Periodic table based on Atomic number of elements.
Naturally occurring and man made elements
The atomic number that sodium has in periodic table is 11 and valency is 1. The periodic table is a kind of table that was invented for the better study of elements and other types of compound. It makes the systematic study of elements.
Metals nonmetals and metalliods
The three broad classes of elements found the periodic table are metals, non metals, and metalloids.
metallic elements are found in the center of the periodic table, and nonmetallic elements are anywhere but the middle...
hydrogen, coal, iodine, oxygen, sodium, and iron
The periodic table usually displays the symbols and names of the elements, along with information about the structure of their atoms.
First: Acid is not a single substance but is a category that includes many different substances. Second: No, all acids are compounds.
"metals"