ACS Organic Chemistry Semester 1 question and answers
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Course
Material chemistry
Institution
Material Chemistry
formal charge - Correct Answers: group # - lone pairs (NBE) - bonds (1/2 valence electrons)
valence electrons - Correct Answers: electrons in the outer most shell
Atom - Correct Answers: Smallest particle of an element
protons+neutrons surrounded by electrons
octet rule - Correct A...
valence electrons - Correct Answers: electrons in the outer most shell
Atom - Correct Answers: Smallest particle of an element
protons+neutrons surrounded by electrons
octet rule - Correct Answers: States that atoms lose, gain or share electrons in order to acquire a full set
of eight valence electrons
Pauli Exclusion Principle - Correct Answers: An atomic orbital may describe at most two electrons, each
with opposite spin direction
Aufbau Principle - Correct Answers: states that each electron occupies the lowest energy orbital
available first
Hund's Rule - Correct Answers: states that single electrons with the same spin must occupy each equal-
energy orbital before additional electrons with opposite spins can occupy the same orbitals
single bonds - Correct Answers: - Sigma bonds, contains two electrons.
* Permit free rotation
double bonds - Correct Answers: 1 sigma and 1 pi bond
triple bonds - Correct Answers: 1 sigma and 2 pi bonds
atomic number - Correct Answers: equal to the number of protons
neutrons - Correct Answers: equal to the atomic mass - atomic number
, isotopes - Correct Answers: where the same element has the same number of protons (mass number)
but different amount of neutrons, resulting in a different mass number (12C AND 13C)
ionic bond - Correct Answers: Formed when one or more electrons are transferred from one atom to
another
(metal/nonmetal)
covalent bond - Correct Answers: A chemical bond that involves sharing a pair of electrons between
atoms in a molecule
non polar covalent bond - Correct Answers: equal sharing of electrons
polar covalent bond - Correct Answers: unequal sharing of electrons
common bonding patterns: C - Correct Answers: 4 valence electrons
0 lone pairs
4 bonds
common bonding patterns: N - Correct Answers: 5 valence electrons
1 lone pair
3 bonds
common bonding patterns: O - Correct Answers: 6 valence electrons
2 lone pairs
2 bonds
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