Molar Mass
What is the molar mass of (NH4)2SO4
132.14 g/mol
The principal quantum number indicates the relative ______ of the orbital.
Size
As
[Ar]4s23d104p3
S2O3
Disulfur Trioxide
Rank Each Set in order of decreasing atomic size.
a) Br, Rb, Kr
b) Sr, Ca, Rb
a) Rb > Br > Kr
b) Rb > Sr > Ca
What is the % by mass of Oxygen in AlPO4?
52.4%
Each orbital fills up with one parallel electron before a second electron of opposite spin is added to the orbital is known as what?
Hund's Rule
Pd
[Kr]5s24d8
Iron (III) Hyposulfite
Fe2(SO)3
Rank the following elements in order of decreasing ionization energy.
a) Sb, Te, Sn
b) K, Ca, Rb
a) Te > Sb > Sn
b) Ca > K > Rb
If 8.42x1022 oxygen atoms are in a sample of C2H3Cl3O2, what is the mass of the sample?
11.56 g
What is the l value of the highest energy electron in As?
1
Bi
[Xe]6s25d104f146p3
Ag3N
Silver Nitride
Which element has the highest electronegativity?
Which element has the biggest atomic radius?
Fluorine: top right
Francium: bottom left
What is the mass of oxygen in a 9.24 gram sample of ammonium sulfate?
4.48 g
Which of these is a correct pairing of quantum numbers
a) n=3, l=2, ml=1.5, ms=1/2
b) n=3, l=3, ml=-1, ms=1/2
c) n=4, l=3, ml=-2, ms=-1/2
d) n=3, l=2, ml=0, ms=1/4
c
Au
[Xe]6s15d10
(NH4)3PO4
Ammonium Phosphate
Element Q is in period 3 and has the following ionization energies, identify the element and write its full configuration.
IE1 IE2 IE3 IE4 IE5 IR6
577 1,816 2,744 11,576 14,829 18,375
Aluminum: 1s22s22p63s23p1
A Freon leak in the air conditioning system of an old car releases 4.09 g of CF2Cl2 per month. What mass of fluorine does this car emit into the atmosphere each year?
15.43 g F/yr
What is the maximum amount of electrons that can share the quantum numbers n=3, ml=0, ms=1/2
3
Write the full electron configuration for Copper
1s2 2s2 2p6 3s2 3p6 4s1 3d10
Calcium Periodate
Ca(IO4)2
Which group in the periodic table has elements with endothermic initial ionization energies and very exothermic first electron affinities?
Group 17 or halogens