What is an atom and a molecule?
Atom : An atom is the smallest particle of an element and the basic unit of matter that retains the chemical properties of that element. It consists of three main subatomic particles:
Protons
: Positively charged, found in the nucleus.
Neutrons
: Neutrally charged, located in the nucleus.
Electrons : Negatively charged, that orbit the nucleus in different energy levels.
M
olecule:
It is a group of two or more atoms bonded together (typically a chemical bond such as a covalent or ionic bond). These atoms can be of the same element or different elements. These are the smallest units of a compound that can exist independently and retain the chemical properties of that compound.
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