ACS CHEMISTRY GENERAL ACTUAL EXAM | QUESTIONS AND
ANSWERS | VERIFIED ANSWERS (100% CORRECT) | LATEST
EXAM UPDATE
Layout of an element (mass # & atomic #) - CORRECT ANSWER -
Forms of the same elements that differ in amount of neutrons - CORRECT
ANSWER - isotopes
When alpha particles were shot at a metal foil target, most passed through
without deflections, while others deflected at large angles. What did this suggest
to Rutherford? - CORRECT ANSWER - that the atoms of the metal were
mostly empty space, while the nucleus consisted of most of the mass which
included highly condensed positive particles (which caused the deflection).
Electron Configuration - CORRECT ANSWER -
electromagnetic spectrum - CORRECT ANSWER - Greater wavelength =
lower frequency
greater frequency = shorter wavelength
Light Energy Formula - CORRECT ANSWER -
Periodic Table - CORRECT ANSWER -
Electrons configuration rule that states electrons do not pair until they have to.
(put one electrons in each electron domain then pair up) - CORRECT
ANSWER - Hund's rule
An experimental phenomena associated with atoms having unpaired electrons -
which states such substances are attracted to magnetic fields - CORRECT
ANSWER - Paramagnetism
quantum numbers - CORRECT ANSWER -
What do the 4 quantum numbers stand for? - CORRECT ANSWER - n =
energy level
l = (n-1)
ml -l to l
mn 1/2 or -1/2 (spin)
, List the quantum numbers for the s, p, d, and f orbitals - CORRECT
ANSWER - s 1,0,0
p 2, 1, -1-0-1
d 3, 2, -2--1-0-1-2
f 4, 3 -3--2--1-0-1-2-3
What two subatomic particles have the most mass, but occupy very little of the
volume of an atom - CORRECT ANSWER - protons and neutrons
Define Isoelectronic - CORRECT ANSWER - Having the same amount of
electrons
How does a sodium ion differ from a sodium atom? - CORRECT ANSWER -
the sodium ion has fewer electrons
two or more compounds with the same formula but a different arrangement of
atoms in the molecule and different properties - CORRECT ANSWER -
isomer
two or more different physical forms in which an element can exist. Graphite,
charcoal, and diamond are all ________ of carbon. - CORRECT ANSWER -
allotropes
What did Millikan discover from his oil drop experiments? - CORRECT
ANSWER - the magnitude of the charge on an electron
Periods vs Groups - CORRECT ANSWER -
when an atom of an electropositive atom becomes an ion it..? - CORRECT
ANSWER - becomes larger
Nearly all the mass in an atom is located _________ because both ______ &
______ are located there, and each of these particles have a mass larger than the
______ - CORRECT ANSWER - inside the nucleus
protons & neutrons
electron
Classify the following as an element, compound, or mixture. If it is a mixture,
decide if it is a homogeneous or heterogeneous mixture.
1 Sugar
2 Spaghetti Sauce
3 Phosphorus - CORRECT ANSWER - 1 compound, not a mixture
ANSWERS | VERIFIED ANSWERS (100% CORRECT) | LATEST
EXAM UPDATE
Layout of an element (mass # & atomic #) - CORRECT ANSWER -
Forms of the same elements that differ in amount of neutrons - CORRECT
ANSWER - isotopes
When alpha particles were shot at a metal foil target, most passed through
without deflections, while others deflected at large angles. What did this suggest
to Rutherford? - CORRECT ANSWER - that the atoms of the metal were
mostly empty space, while the nucleus consisted of most of the mass which
included highly condensed positive particles (which caused the deflection).
Electron Configuration - CORRECT ANSWER -
electromagnetic spectrum - CORRECT ANSWER - Greater wavelength =
lower frequency
greater frequency = shorter wavelength
Light Energy Formula - CORRECT ANSWER -
Periodic Table - CORRECT ANSWER -
Electrons configuration rule that states electrons do not pair until they have to.
(put one electrons in each electron domain then pair up) - CORRECT
ANSWER - Hund's rule
An experimental phenomena associated with atoms having unpaired electrons -
which states such substances are attracted to magnetic fields - CORRECT
ANSWER - Paramagnetism
quantum numbers - CORRECT ANSWER -
What do the 4 quantum numbers stand for? - CORRECT ANSWER - n =
energy level
l = (n-1)
ml -l to l
mn 1/2 or -1/2 (spin)
, List the quantum numbers for the s, p, d, and f orbitals - CORRECT
ANSWER - s 1,0,0
p 2, 1, -1-0-1
d 3, 2, -2--1-0-1-2
f 4, 3 -3--2--1-0-1-2-3
What two subatomic particles have the most mass, but occupy very little of the
volume of an atom - CORRECT ANSWER - protons and neutrons
Define Isoelectronic - CORRECT ANSWER - Having the same amount of
electrons
How does a sodium ion differ from a sodium atom? - CORRECT ANSWER -
the sodium ion has fewer electrons
two or more compounds with the same formula but a different arrangement of
atoms in the molecule and different properties - CORRECT ANSWER -
isomer
two or more different physical forms in which an element can exist. Graphite,
charcoal, and diamond are all ________ of carbon. - CORRECT ANSWER -
allotropes
What did Millikan discover from his oil drop experiments? - CORRECT
ANSWER - the magnitude of the charge on an electron
Periods vs Groups - CORRECT ANSWER -
when an atom of an electropositive atom becomes an ion it..? - CORRECT
ANSWER - becomes larger
Nearly all the mass in an atom is located _________ because both ______ &
______ are located there, and each of these particles have a mass larger than the
______ - CORRECT ANSWER - inside the nucleus
protons & neutrons
electron
Classify the following as an element, compound, or mixture. If it is a mixture,
decide if it is a homogeneous or heterogeneous mixture.
1 Sugar
2 Spaghetti Sauce
3 Phosphorus - CORRECT ANSWER - 1 compound, not a mixture
