An atom is the smallest building block of everything that exists. The smallest object you can see under a microscope has more than 10 billion atoms . This unit takes a look at parts of an atom, compounds and important elements of the periodic table.
An atom is the smallest building block of everything that exists. The smallest object you can see under a microscope has more than 10 billion atoms . This unit takes a look at parts of an atom, compounds and important elements of the periodic table.