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Chemistry Final Review
Terms in this set (71)
The unit m^3 measures
How many cc's are in a liter
a mixture that is the same throughout (air, sea water, mixture of metals)
A mixture in which substances are not evenly mixed (rocks, muddy water and polluted air)
Physical means such as filtration and evaporation can be used to separate
Isotopes of an element contain different numbers of
neutrons (so they will have a different atomic mass)
Neutral atoms contain equal numbers of
protons and electrons
According to Bohr's modle, atoms emit light when
electrons jump to a lower energy level
Total number of protons in a atom is the
The atomic nucleus
Positively charged, small volume and contains protons
Isotopes of an element differ only in their
Lowest EM radiation
Pauli Exclusion Principle
no two electrons in the same atom can have the same set of four quantum numbers (energy levels)
Empty orbitals are filled before filling occupied orbitals.
The outermost occupied energy level can hold no more than 8 electrons
electrons occupy the lowest energy sublevel first
Which of the following is the most important factor in determining a photon's energy?
Elements with a high ionization energy
are on the right side of the periodic table
Group most likely to gain one electron
Which of the following is governed by valence electrons?
The amount of energy required to gain an electron
The amount of energy required to remove an electron from an atom
Size of an atom
Cations are on the ___________ side of the periodic table
Anions are on the __________ side of the periodic table
ions that are made of more than one atom & contain oxygen
Have very high melting points
Ionic bonding is between
metal and non metal
Covalent bonding is between
FONCl + NonFONCl
AB or AB2
AB3, 120 degrees
AB3E, 107 degrees
AB4, 109.5 degrees
when a molecule has more than 8 electrons around the central atom
Rutherford's Gold Foil Experiment
Told us that the nucleus is positevly charged, tiny, and has all the mass.
The __________ has the most mass and the ____________ has the most volume
Nucleus, Electron Cloud
____ energy levels (shells) in an atom
principle quantum #
Energy level (shells)
What do you measure of the mass of an atom with?
Atomic Mass Unit
Energy levels are divided into _____ sublevels
angular momentum number
Tells the sublevel than an electron occupies
sub levels are divided into
Protons + Neutrons
Highest EM radiation
_________ photons have the lowest energy and longest wavelength and ____________ has the highest energy and the shortest wavelength.
What governs the energy level that an electron will occupy?
The atomic mass listed in the periodic table is the
Average atomic mass
The electron notation 1s^3 violates which rule?
Pauli Exclusion Principle
As the frequency of light increases
the energy increases
An electron with a principle quantum # of 4 has a higher ____ than an electron with n=2
The electron notation 1s^2 3p^4 violates which rule?
What is the most important factor in determining a photon's energy?
How many possible magnetic quantum numbers are there for the d sublevel?
The electron notation 1s^2 2s^2 2p^7 violates which rule and for what reason?
What group 2 element forms compounds that are the most soluble in water?
Removing an electron is a _________ process
What elements conduct electricity and react with acid but no water
Alkali Earth Metals
Ionic compounds have what property?
Very high melting point
How do ionic compounds conduct electricity?
They DO conduct electricity when they are dissolved or melted but NOT when they are solid
Name CO3 2-
Manganese 2+ Ion
Iron (III) Nitrate
Formula for Tin (IV) nitrate
As distance increases electrical force increases
least electronegative element
______ & _______ can form triple bonds
What occurs due to the sharing of pairs of valence electrons between two atoms?
What is a measure of how much an element attracts electrons when in a molecule?
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