Chapter 7 Flashcards
_____ bonds involve 2 atoms in which one of them steals electrons from the other.
Ionic bonds
Does the octet rule allow exceptions?
Yes
Example: hydrogen
What do anti bonding oribitals do to a molecule?
Destabilize it
What type of bond is it when electrons are shared equally?
Non polar covalent bond
What type of bond is a pie bond?
Side to side
What is molecular resonance?
When the electron is always moving in a molecule because orbitals are not fixed
What is an exception to the octet rule?
Some elements such as boron are content with not having four shared pairs of electrons
In the VESPR theory, an area of electron density can be what?
A pair of unshared electrons
Single bond
Double bond
Triple bond
What is the difference between symmetrical and asymmetrical molecules?
Symmetrical- balanced, so they make a non-polar bond
Asymmetrical- unbalanced, so they make a polar bond
What theory states that when the two bonding orbitals are superimposed, the overlapping space containing both electrons become available to both nuclei, and both atoms acquire another valence electron that fills the vacancy in that particular orbital?
Valence bond theory
What theory suggests that the orbitals of a molecules atoms are replaced by totally new orbitals when a molecule forms
Molecular orbital theory
Which theory focuses on the locations of highest electron density surrounding the central atoms in a molecule, and those areas of negative electrical charge repel each other until they are as far apart as is geometrically possible?
Valence shell electron pair repulsion theory (VSEPR)
What is orbital hybridization?
When orbitals of different energies combine together to form new orbitals
Partial charges on molecules are represented by what symbol?
Delta
In a Lewis diagram, the arrow with a plus sign points towards what?
The atoms with higher electronegativity
