Different States of Matter

Question 1

what are the two general forms of solids and what makes them different?

Answer 1

crystalline: regular and orderly array
amorphus: disordered network of strongly bonded atoms

Question 2

what are the different types of solids and what makes them different?

Answer 2

atomic: consists of invididual atoms packed in a regular crystalline array with relatively weak dispersion forces between the atoms. only the noble gases form atomic solids at low temp
metallic: atomis with a low ist ionisation energy form similar array as atomic, valence electrons form a delocalised cloud of electrons
ionic: formed by ions
molecular: molecules held together by intermolecular forces

network covalent: atoms linked by strong covalent bonds in an extensive 3 dimensional network through the whole solid

Question 3

what are some properties of solids?

Answer 3

fixed shape
high density
low compressibility

Question 4

what are some properties of liquids?

Answer 4

• kinetic energy of molecules is comparable to intermoleculer forces
• able to flow
• no fixed shape, high density, has a surface and surface tension
• viscosity that can be explained by intermoleculer forces

Question 5

what is viscosity?

Answer 5

the measure of a liquids resistance to flow

Question 6

what is surface tension?

Answer 6

the resistance of a liquid to increase its surface area