Define the terms :(a)Element (b) atom (c) molecule
Answers
An element is a substance that is made entirely of one type of atom. For example, the element sodium is made up of only sodium atoms. A molecule is a substance that contains two or more atoms chemically joined, such as H2,O2.
Answer:
Atom is a particle of matter that characterizes a chemical element
Explanation:
An atom is a particle of matter that characterizes a chemical element. It is the smallest part of ordinary matter. It is made from particles called protons, neutrons and electrons called the subatomic particles.
An element is a substance that is made entirely of one type of atom. For example, the element sodium is made up of only sodium atoms.
A molecule is a substance that contains two or more atoms chemically joined, such as H2,O2
A compound is a substance that is made up of two or more different elements that are chemically joined, such as H2O,CO,NaCl.
Note: All compounds are molecules, but not all molecules are compounds