Chem13

Question 1

What does electron configuration show us
Difference in electron configuration for isotopes
How to find the number of valence electrons of a transition metal

Answer 1

Arrangement of electrons in atoms
None
Cross the electron configuration of its last noble gas from its electron configuration

Question 2

What does the pauli exclusion principle say
Will the spins of electrons in the same orbital be parallel or opposites

Answer 2

No two electrons in an atom have the same set of quantum numbers
Opposite

Question 3

How to know if an atom in a lewis structure jas a positive charge

Answer 3

If it forms more bonds than it has to

Question 4

Formila of charge of atom in a lewis structure

Answer 4

Number of valence electrons - (number of bonds + number of lone electrons)

Question 5

What isomer of C2H6O has an oxygen in the center
What causes molecular respnance
Constitutional isomers vs stereoisomers
Distinguish the Types of stereoisomers
Enantiomers and meso compounds

Answer 5

Methoxymethane
Electrons positions around atoms can vary
Constitutional differs in arrangement of atoms and stereo differs in spatial arrangement
When all chiral centers change, Theyre enantiomers if theres no symmetry and meso compound if there is symmetry, but if only some chiral center changes theyre distereomers

Question 6

a single bond or double bond or triple bond: which is longest and which is strongest
All single bonds are Sigma/pi
How many sigma/pi bonds are in a double bonds
Sigma/pi bonds are stronger
What does bond order mean

Answer 6

Single and triple
Sigma
One
Sigma
The number of individual bond the bond is made

Question 7

How to write the hybridization of a bond
Whats the exponent of ‘s’
What do the exponents add to
Shape of sp3 hybridized orbitals

Answer 7

A dash between the hybridization of the atoms forming the bond
One
The number of bonds the atom makes in a Lewis structure
Tetrahedral

Question 8

What elements are in the d block
What kind of bonds do unhybridized orbital form
What kind of bonds do hybridized orbital form
What is a paramagnetic element
Why is it more stable to have unpaired electrons

Answer 8

Transition metals
Atomic orbitals hybridized for molecules
Pi
Sigma
An element with unpaired electrons
Electrons repel

Question 9

Define:
Radical
Carbene
Carbocation
Carbanion

Answer 9

Anything with at least one unpaired electron
A carbon with two bonds and a lone pair
A carbon with three bonds
A carbocation with a lone pair

Question 10

What do you add to a hydrocarbon name if it has an amide group
Whats an n-methyl
What do you call amides secondary or primary or tertiary based on

Answer 10

-amide
A methyl on a nitrogen atom
How many carbons are bonded to a nitrogen atom