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what is a bond
it is a force of attraction that holds atoms together
metallic bonding
Metals form giant structures in which electrons in the outer shells of the metal atoms are free to move
what is a ionic lattice
a giant structure of positive and negative ions
what are ions
an atom that has lost or gained electrons is now a charged particle called an ion. To become stable and have a full outer shell or electrons
what holds a covalent bond
the positve nuclei of each atom is attracted to the shared pair of electrons
what is a covalent network
giant structures with millions and millions of atoms covalently bonded together, this gives them high melting/boiling points as the covalent bonds have to be broken
what is the force of attraction for ions
there is a strong force of attraction between the positively charged ions and negatively charged ions are attracted to eachother
What are metallic structures
giant lattices with millions of metal ions. This gives them high melting and boiling points
why do ionic bonds have high melting/boiling points
the ionic bonds are strong which is why ionic substances have high melting\boiling points as lots of energy id required to break ionic bonds
what are covalent molecules
They have set numbers of atoms in their molecules this gived them a low melting and boiling point as it is not covalent bonds that are broken