The flashcards below were created by user
on FreezingBlue Flashcards.
The covalent bonds that results from sharing valence electrons.
Is formed when two or more atoms bond covalently.
Single covalent bonds:
- When only an atom shares only one pair of electrons.
- 2 single covalent bonds: H2O
- 3 single covalent bonds: NH3
- 4 single covalent bonds: CH4
Double covalent bonds
when 2 pairs f electrons are shared between two atoms.
Triple covalent bonds:
when three pairs of electrons are shared between two atoms. (N2)
- it is the distance from the center of one nucleus to the center of another nucleus of two bonded atoms. The closer the stronger the bond.
- A single bond is weaker than a double bond. And a double bond is weaker than a triple bond.
Bond dissociation Energy
- The amount of energy required to break a specific covalent bond
- The smaller the bond length, the greater the bond dissociation energy.
Naming binary molecular compounds
- It is a condition that occurs when more than one Lewis structure can be written for a molecule or ion.
- nitrite can be written in several ways.
Exceptions to the Octet Rule:
- trigonal planar
- Trigonal pyramid
- Trigonal bipyramidal
Electrons are equally shared between the atoms
EN difference and bond character
- >1.7: mostly ionic
- 0.4-1.7: polar covalent
- <0.4: mostly covalent
- 0: nonpolar covalent