Isotopes differ by the number of _____ in the nucleus
neutrons
100
What is the total capacity of electrons in n = 4?
32
100
What is the charge on the chromium ion in CrCl2?
+2
100
What is the net charge of the carbonate ion?
2-
200
How many sig figs are in the answer?
1.0538 x 5.324 x 3.462 x 0.0323 x 8.456
3
200
As you move down a group, ionization energy ____.
decreases
200
write the electron configuration for Mn
1s2 2s2 2p6 3s2 3p6 4s2 3d5
200
Name this compound:
AgPO4
Silver (III) Phosphate
200
How many sigma and pi bonds are in a triple bond?
1 sigma bond
2 pi bonds
300
"Iron oxidizes to form rust"
This is an example of a ____ property
chemical property
300
Atomic size ____ as you move down a group and ______ as you move across a period.
increases, decreases
300
An azimathul quantum number of l = 2 corresponds to what kind of orbital?
d as in doge
300
Draw the Lewis structure for HCN, hydrogen cyanide
_
H-C=N:
(That's a triple bond between C and N)
300
The energy of a photon is inversely proportional to its _______.
wavelength
400
Bronze is a _____
homogeneous
400
Americium-241 undergoes alpha decay to form what?
Neptunium-237
400
When nickel forms a 2+ ion, it gives up its electrons in the ___ orbital
4s
400
Write the formula of the nitride ion
N3 -
(Three nitrogens with a net charge of 1-)
400
What are the bond angles in a tetrahedral molecule?
109.5
500
Soda is an example of what kind of mixture
heterogeneous
500
Get out your calculators!
Chlorine has two naturally occurring isotopes. The average mass of chlorine is 35.453 u. If 75.77% of chlorine is found as chlorine-35 (34.968852 u), what is the mass of the other isotope?
36.97
Don't forget sig figs!
500
How many orbitals have the following quantum numbers: n = 4, l = 1
3
2p, 3p, and 4p can all have these quantum numbers
500
Use VSEPR theory to predict the molecular geometry of XeO2F2
Sawhorse
500
The first person to stand up and say, in their best Borat voice, "I'm Borat. I like you. Very nice." Wins 500 points for their group.