Identify each of the following atoms on the basis of its electron configuration: a. 1s22s22p1 b. 1s22s22p5 c. [Ne]3s2 d. [Ne]3s23p2 e. [Ne]3s23p5 f. [Ar]4s1 g. [Ar]3d64s2 3
WEEK 11 NOTES States of Matter and Phase Transitions • The difference between states of matter is the difference between particles o The properties of matter depend on the strength of interactions between particles • Intermolecular forces are attractive interactions that hold particles (molecules, atoms, ions) together in groups • Intramolecular forces are attractive interactions that hold together atoms within a molecule or compound. • Phase changes in matter do not change the bonding within a molecule o However, phase changes can change the arrangement of the molecules within groups and motion of the molecules in the matter • Breaking bonds or interactions between molecules/compounds requires energy