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
How many different elements are in a water molecule? A: Water contains two
types of elements, hydrogen and oxygen, and three atoms in total. Because ...
But we can get an estimate of the number of atoms in the earth by first knowing ...
of the earth for the most abundant types of atoms (also called the element).
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 ...
All isotopes of a particular element have the same number of protons, but have a
different number of neutrons. If you change the number of neutrons an atom ...
Depends on the type of element. in one molecule of water, represented by H2O,
there are three atoms, two hydrogen and one oxygen.
There is only one. For example, there are only atoms of Au (gold) in Au. Think of
an element as a pure non-composite substance, identifiable as itself down to the
Atoms are so small that there are millions and billions and trillions in the tiniest
speck you can see. ... ELEMENTS are the kinds of atoms that we can have. ...
Molecules can be much bigger. ... If you take those 20 atoms of vitamin C and mix
them around, bonding them together in a different order, you'll have a totally
Jun 18, 2013 ... Lots! The most common are carbon, oxygen, nitrogen, hydrogen and sulphur (in
proteins) and phosphorous (in DNA and RNA). Then there are ...