Review Main Ideas. 11-10-15(kassandrae.)

State octet rule

Chemical compounds tend to form so that each atom, by gaining, losing, or sharing electrons, has an octet of electrons in its highest occupied energy level

Compare the Molecules H2NNH2 and HNNH. Which moecule has a stronger N-N bond?

HNNH has a stronger N-N bond because it is a double bond, which is stronger than the single bond N-N bond in H2NNH2.

Define: Bond length and Bond energy

The distance between two bonded atoms at their minimum potential energy, that is, the average distance between two bonded atoms Bond energy- energy required to break a chemical bond and form neutral isolated atoms.

(2) How many pairs of electrons are share in the following types of covalent bonds? a. single bond b. double bond c. triple bond

a. 2 electrons b. 4 electrons c. 6 electrons