Chemical bonds concept video 9

Question 1

species will generally seek to

Answer 1

lower the overall energy if the system

Question 2

Bond length

Answer 2

Distance between two nuclei at the minimum energy

Cancel energy of repulsion and attraction

Question 3

what is a stable species?

Answer 3

Considered stable is all the components are held tgt strongly enough that they dont fall apart

Question 4

Ionic bonding

Answer 4

rearrangement of electrons to form cations and anions that are columbically attracted to eachother

Question 5

Covalent bonding

Answer 5

atoms share electrons in a way that is beneficial for both partners

Question 6

Ionic bonding requirements (2)+summary of the energy effectiveness

Answer 6

rearrangement of electrons to form ions from atoms (requires energy)

Columbic attraction of the 2 ions (get energy back)

the benefit of coulumbic attraction must be greater than the penalty of needing to form the ions.

Question 7

if change in electronegativity is ______ then the bonding is ionic

Answer 7

larger then 2

Question 8

covalent bonding occurs when (2)

Answer 8

ionic bonding is not favourable, electrons can be shared between partners

because the electronegativity is 0, we share the electrons

Question 9

The stabilization of covalent bonding comes from (2)

Answer 9

both the stronger attraction of the electron because there are two nuclei it can go between

decreased repulsion that comes from the electron density that comes from the 2 nuclei protecting one from another

Question 10

bond dipole (2)

Answer 10

asymmetry in electron distribution

more on one side=more neg

Question 11

the strength of a bond is the

Answer 11

energy required to completely break the connection between atoms

Question 12

hemolytic bond cleavage

Answer 12

shared pair of electron in a covalent/polar covalent bond gets split in half
common in covalent bond

Question 13

heterolytic bond cleavage (2)

Answer 13

electron goes to one element fully

common in ionic interaction