An atom is the basic unit that makes up all matter. There are many different types of atoms, each with its own name, mass and size. These different atoms are ...
The elements. There are more than 109 different types of atom - one for each element. ... How many different combinations of two atoms can we make? (Type a ...
Apr 24, 2017 ... Their protons, neutrons and electrons balance. Barring ... Some atoms have too many neutrons in the nucleus, which makes them unstable.
Apr 29, 2003 ... Everything you see around you is made of tiny particles called atoms. There are many different types of atoms, each with a special combination ...
Atoms in a chemical element that have different numbers of neutrons than protons and electrons ... There's even an isotope of hydrogen containing two neutrons.
How many atoms would<br>it take to create a ton? ... of the fractional amount of the earth for the most abundant types of atoms (also called the element).
An element is a substance that is made entirely from one type of atom. For example ... These different versions of hydrogen are called isotopes. All isotopes of a ...
A: A molecule is made up of two or more atoms of the same element or compound, or different elements or compounds, that are chemically bound together.
Atoms are so small that there are millions and billions and trillions in the tiniest speck you can see. Solids, liquids, gases ... ELEMENTS are the kinds of atoms that we can have. Carbon is an ... Molecules can be much bigger. One molecule of ...