Name: ______________________ date: _______________
ch. 6 & 13 atomic & electronic structure test [100 points] Chemistry
1. fill-in the below table. [22 points]
|
symbol |
# protons |
# neutrons |
mass # |
# electrons |
charge |
|
43Ca2+ |
|
|
|
|
|
|
|
16 |
|
30 |
|
-2 |
|
|
|
15 |
28 |
|
3 |
2. fill-in the below table. label & show your work, including equation / formula used, units in your work / answer, and circle your answer. [30 points]
|
energy |
frequency |
wavelength |
|
2.00 * 10 - 20 J |
a. |
b. |
|
c. |
5.00 * 1015 Hz |
d. |
|
e. |
f. |
255 nm |
3. find the average atomic mass based on the following (hypothetical) data. show your work, including equation / formula used, proper units in your work / answer, circle your answer, and have the correct # significant figures in your answer. [15 points]
|
|
atomic mass (amu) |
% abundance |
|
45Ca |
44.983 |
3.00 |
|
40Ca |
39.971 |
87.00 |
|
38Ca |
37.897 |
? |
4. provide the electron configuration or orbital diagram (as requested; in order of ascending energy level) of the following atoms. no "short-cut". [30 points]
a. nitrogen [draw orbital diagram]
b. sodium [write electron configuration]
c. sulfur [write electron configuration]
5. describe the shape of the s-orbital. [3 points]