Welcome to the International Home Care Nurses Organization. The International Home Care Nurses Organization is a world-wide network of nurses interested in promoting excellence in home-based healthcare throughout the world. We strive to achieve this goal through three initiatives:
The definition of a molecule is the smallest amount of something, particularly of a chemical substance, that can exist on its own. An example of a molecule are two atoms of hydrogen.
Define molecule and molecular formula (6.2) A molecule is neutral group of atoms held together by covalent bonds. A molecular formula shows the types and numbers of atoms combined in a single molecule of a molecular compound, such as H2O (type: hydrogen and oxygen, number: 2 H, 1 O).