Atomic Structure Worksheet
Name Period Date
Atomic Structure and Isotopes
Part A – Subatomic Particles
The table below contains information about several elements. In each case, enough information has been provided for you to fill in the blanks. Assume all atoms are neutral.
|Isotope |Isotope Symbol |Atomic Number |Mass Number |# of Protons |# of Electrons |# of Neutrons |
|Name | | | | | | |
|calcium-40 | | | | | | |
| | |12 |24 | | | |
| | | | |1 | |2 |
| |[pic] | | | | | |
| | | | | |26 |30 |
| | | |201 |80 | | |
| | |17 | | | |18 |
Part B – Average Atomic Mass
1. Calculate the average atomic mass for neon if its abundance in nature is 90.5% neon-20, 0.3% neon-21, and 9.2% neon-22.
2. Calculate the average atomic mass of silver if 13 out of 25 atoms are silver-107 and 12 out of 25 atoms are silver-109.
What is the average atomic mass of the following isotopic mixtures? Show your work!!
10) 22.00% of 159.3 amu; 78.00% of 161.2 amu.
11) 42.10 amu - 93.50%; 48.30 amu - 6.200%; 50.40 amu - 0.3000%
12) 75.0 % 133Cs with a mass of 132.97 amu, 20.0 % 132Cs with a mass of 131.98 amu, and 5.00 % 134Cs with a mass of 133.982 amu
13) 80.00 % 127I with a mass of 126.963 amu, 17.00 % 126I with a mass of 125.984 amu, 3.00 % 128I with a mass of 127.992 amu
14) 50.00 % 197Au with a mass of 196.798 amu, 50.00 % 198Au with a mass of 197.882 amu
15) 15.35 % 55Fe with a mass of 54.997 amu, 84.65 % 56Fe with a mass of 55.989 amu
16) Distinguish between mass number, relative atomic mass, and average atomic mass.
................
................
In order to avoid copyright disputes, this page is only a partial summary.
To fulfill the demand for quickly locating and searching documents.
It is intelligent file search solution for home and business.
Related searches
- atomic structure answer key
- atomic structure practice answer key
- atomic structure worksheet answers pdf
- atomic structure practice worksheet answers
- average atomic mass worksheet answer
- history of atomic structure powerpoint
- basic atomic structure ppt
- atomic structure ppt high school
- basic atomic structure worksheet answers
- atomic mass worksheet pdf
- atomic basics worksheet key
- atomic number worksheet answers