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Atomic Bonding

Atomic bonding - JC Chemistry

What is a molecule? A molecule is made up of two or more atoms chemically combined. It is the smallest part of an element or compound that can exist on its own.
What are compounds? Compounds are substances made from two or more different elements chemically combined.
How does bonding occur? Bonding occurs because all atoms try to have a full outer shell, and will lose, gain or share electrons in order to do so.
What is an ion? An ion is a charged atom (an atom which has lost or gained electrons). If an atom loses an electron, then it becomes a positive ion. If an atom gains an electron, then it becomes a negative ion.
How is an ionic bond formed? An ionic bond is formed by the force of attraction between two oppositely charged ions.
What is an example of an ionic bond? An example of an ionic bond is sodium chloride, NaCl. The bonds in NaCl are formed by sodium atoms losing electrons and chlorine atoms gaining electrons.
What is a covalent bond? A covalent bond is a bond formed by different atoms sharing electrons in order to have a complete outer shell.
What is an example of covalent bonding? An example of a covalent bond is O2. The bonds in this molecule are formed by the atoms in the molecules sharing electrons with each other.
In a negatively charged ion the number of (i)___________ is greater than the number of (ii)___________. Fill in the blanks. (i) electrons (ii) protons
In a positively charged ion the number of (i)___________ is greater than the number of (ii)___________. Fill in the blanks. (i) protons (ii) electrons
Created by: bonitadarcy