Ionization Energy
Ions
Molar Mass
Photoelectric Effect/ Electron Duality
Potpourri
100
________ is the energy needed to remove an electron from an atom,
while _____ is the energy released when an atom in the gas phase accepts an electron
while _____ is the energy released when an atom in the gas phase accepts an electron
Ionization energy, Electron affinity
100
The 7A group, also known as the _______,
tend to form ions with charges __________.
tend to form ions with charges __________.
Halogen, -1
100
What is the molar mass of the Carbon 12 isotope?
12 grams
100
The electrons possess both ______ qualities and
______ qualities, which give it a duality.
______ qualities, which give it a duality.
Wave, Particle
100
How many molecules are in a mole?
6.022 x 1023
200
True or False?
Ionization energy and electron affinity are related to electronegativity
Ionization energy and electron affinity are related to electronegativity
True
200
The ___ block elements can form ions with more than 1 ion charge.
D block
200
The mass given on the periodic table is a _________________ of all isotopes
(hint: 4 words)
(hint: 4 words)
Percent composition by mass
200
Energy from light is given in ________ which has a directly
proportional relationship with the _______ of the light.
proportional relationship with the _______ of the light.
Photons, frequency or wavelength
200
In general, Energy is ____when a bond is formed
and ____ when they are broken.
and ____ when they are broken.
Released and absorbed
300
For a specific element, the Ionization energies are as follows :
E1=1402
E2=2856
E3=4578
E4=7475
E5=9445
E6=53267
E7=64360
What group is this element most likely in?
E1=1402
E2=2856
E3=4578
E4=7475
E5=9445
E6=53267
E7=64360
What group is this element most likely in?
Group 5
300
Name 5 polyatomic ions with charges 2-.
CO3
CrO4
Cr2O7
HPO4
C2O4
SO4
SO3
CrO4
Cr2O7
HPO4
C2O4
SO4
SO3
300
What is the mass of .905 moles of NaCl?
52.9 g
300
If an electron is ejected from the surface of a metal with 1.5e6 e-19 joules and if the metal has a threshold frequency of 4e14, what is the wavelength of the light that hit the metal?
475 nm
300
What are the units of Planck’s constant?
Joules x seconds
400
Sort the following in order of ionization energy, lowest to highest:
Na, Na+, Cl, Cl-
Na, Na+, Cl, Cl-
Cl-, Cl, Na, Na+
400
Give the name for the ionic compound Cr(MnO4)2
Chromium (II) permanganate
400
Determine the empirical formula of a compound which is 92.3% C and 7.7% H?
CH
400
A minimum energy of 389 kJ/mol is required to break one nitrogen-to-hydrogen bond in ammonia (NH3). What is the minimum frequency of radiation having the necessary energy to break this bond?
9.75 x 1014s-1
400
Elements with metallic character tend to form ______
and non-metallic tend to form ______ in a rxn with one another
and non-metallic tend to form ______ in a rxn with one another
Cation, Anion
500
It is ____to add an electron to an s orbital to add one to a p orbital with the same principal quantum number. Within a p subshell, it is _______ to add an electron to an empty orbital then to add one to an orbital that already contains an electron.
Easier, Easier
500
What is the molecular formula of Mercury (I) Thiocyanate?
Hg(SCN)2
500
What is the molecular formula of a compound with
48.6% C, 8.2 % H and 43.2 % O which has molar mass
about 148g/mol?
48.6% C, 8.2 % H and 43.2 % O which has molar mass
about 148g/mol?
C6H12O4
500
What is the mass of a particle that has a wavelength of 1.32 nm
when it travels at a speed of 2440 miles/hr?
1 mile = 1.609 km
when it travels at a speed of 2440 miles/hr?
1 mile = 1.609 km
4.60 x 10-28 kg
500
The greatest energy released in the chemical reaction to from NaCl is the ______________.
Lattice Energy