EXERCISE
(b) Molecules
(d) Valency
(a) Atoms
(c) Radicals
le) Periodic table
Define the following terms:
Answers
Answer:
b) Molecules = Molecule, a group of two or more atoms that form the smallest identifiable unit into which a pure substance can be divided and still retain the composition and chemical properties of that substance.
d) Valency = Valency is the measure of the combining capacity of atoms or molecules. Therefore, it is the capacity of an atom of a single element to react and combine with particular numbers of atoms of another element.
a) Atom = An atom is the smallest unit of ordinary matter that forms a chemical element. Atoms consist of a nucleus made of protons and neutrons orbited by electrons. .
c) Radicals = Radical, also called Free Radical, in chemistry, molecule that contains at least one unpaired electron. Most molecules contain even numbers of electrons, and the covalent chemical bonds holding the atoms together within a molecule normally consist of pairs of electrons jointly shared by the atoms linked by the bond.
e) Periodic table = The periodic table, also known as the periodic table of elements, arranges the chemical elements such as hydrogen, silicon, iron, and uranium according to their recurring properties