covalent bonding Flashcards
1
Q
what happens in covalent bonding?
A
2+ pairs of electrons are shared between atoms
2
Q
do covalent bonds form polar or non-polar molecules?
A
both
3
Q
generally, how many bonds will an atom form?
A
the same amount as electrons on its outer shell (its ionic charge)
4
Q
how many bonds can oxygen form?
A
2
5
Q
how many bonds can hydrogen form?
A
1
6
Q
how many bonds can nitrogen form?
A
3
7
Q
how many bonds can carbon form?
A
4
8
Q
are covalent bonds stable?
A
yes
9
Q
why are covalent bonds stable?
A
a lot of energy is needed to break the bonds
10
Q
when does covalent bonding occur?
A
when 2+ monomers outer orbitals (shells) are close enough to share electrons
11
Q
name 5 molecules where covalent bonding is present
A
the organic molecules so:
1. water
2. nucleic acids
3. proteins
4. lipids
5. carbohydrates
