covalent bonding

Question 1

what does a covelant bond form between ?

Answer 1

a pair of non metals

Question 2

how does covalent bonding work ?

Answer 2

share their outer shell electrons

Question 3

a small group of covently bonded atoms is called a ….

Answer 3

molecule

Question 4

how are covalent molecules held together ?

Answer 4

electrostatic attraction between nuclei and shared electron

Question 5

what is a double bond in a covalent molecule ?how do you show them ?

Answer 5

where two pairs of electrons are shared .shown with a double bond

Question 6

do molecules have high or low melting points?

Answer 6

low because the strong covalent bonds are only between the atoms
there is weak attraction between molecules so they only need a little energy to pull them apart

Question 7

are covalent molecules good conductors of electricity ?

Answer 7

no , they have only neutral particles so they have no charged particles to carry the current .

Question 8

what is a single covalent bond ?

Answer 8

consists of a single pair of electrons that are shared between 2 atoms ,each atom provides one electron

Question 9

what is coordinate /dative covalent bonding ?

Answer 9

one atom provides both electrons .the atom that accepts the electron pair does not have a fill outer shell , it is electron deficient

Question 10

what are the electrons used in a dative covalent bond called ?

Answer 10

a lone pair

Question 11

what are dative covalent bonds shown by ?

Answer 11

an arrow pointed toward the atom that accepts the lone pair