CHEM 219 MODULE 1 EXAM TEST PAPER
WITH DETAILED QUESTIONS AND
RELIABLE ANSWERS
◉ Catenation
Answer: Ability of ab element to form bonds with itself, resulting
in formation of chains, rings or complex structures.
Allows for vats diversity of organic compounds in terms of
reactivity and properties
◉ The properties & reactivity of an organic molecule are
controlled by its
Answer: composition & shape
◉ Why do atoms form bonds to other atoms?
Answer: Energetic stability
◉ To say an atom is energetically stable means that the overall
energy of the atom is
Answer: lower when in the bonded state than in a non bonded
state
, ◉ T/F
Lower energy typically means greater stability? Why
Answer: True
b/c the electron configuration of the atom - atomic valence
◉ Valence
Answer: # of bonds an atom will form to fill its valve (outermost)
shell.
The atom achieves stability from a full valence shell, as there is no
desire to make bonds
◉ Knowing the valence of an atom is important because it
indicates ...
Answer: How many bonds a given atom will typically form when it
combines with other elements to make a molecule
◉ What do you look at to figure out how many bonds an element
will form
Answer: LDD
Comes from group number
◉ Unpaired electrons
Answer: # of bonds the atom will form
◉ # of pairs of electrons
WITH DETAILED QUESTIONS AND
RELIABLE ANSWERS
◉ Catenation
Answer: Ability of ab element to form bonds with itself, resulting
in formation of chains, rings or complex structures.
Allows for vats diversity of organic compounds in terms of
reactivity and properties
◉ The properties & reactivity of an organic molecule are
controlled by its
Answer: composition & shape
◉ Why do atoms form bonds to other atoms?
Answer: Energetic stability
◉ To say an atom is energetically stable means that the overall
energy of the atom is
Answer: lower when in the bonded state than in a non bonded
state
, ◉ T/F
Lower energy typically means greater stability? Why
Answer: True
b/c the electron configuration of the atom - atomic valence
◉ Valence
Answer: # of bonds an atom will form to fill its valve (outermost)
shell.
The atom achieves stability from a full valence shell, as there is no
desire to make bonds
◉ Knowing the valence of an atom is important because it
indicates ...
Answer: How many bonds a given atom will typically form when it
combines with other elements to make a molecule
◉ What do you look at to figure out how many bonds an element
will form
Answer: LDD
Comes from group number
◉ Unpaired electrons
Answer: # of bonds the atom will form
◉ # of pairs of electrons
