ATOMIC STRUCTURE WORKSHEET



ATOMIC STRUCTURE WORKSHEET

Complete the table. There is enough information given for each element to determine all missing numbers.

|Symbol |Atomic Number |Mass Number |Number of Protons |Number of Electrons |Number of Neutrons |

| | | | | | |

|23Na | | | | | |

| | | | | | |

|K | |40 | |19 | |

| | | | | | |

| | | |38 |38 |52 |

| | | | | | |

|F | | | | |10 |

| | | | | | |

| |20 |41 | |18 | |

| | | | | | |

| |50 | | |50 |72 |

| | | | | | |

|131I | | | | | |

| | | | | | |

|26Mg | | | | | |

| | | | | | |

| | |109 |47 |46 | |

| | | | | | |

| |1 |2 | |1 | |

| | | | | | |

|36S | | | | | |

| | | | | | |

| |26 | | |23 |32 |

| | | | | | |

|27Al | | | | | |

| | | | | | |

| |2 |4 | |2 | |

| | | | | | |

|Cr | |53 | | | |

1. Please use the following table to calculate the average atomic mass of chlorine.

|Isotope |% Abundance |Mass (amu) |

|35Cl |75.78% |34.969 |

|37Cl |24.22% |36.966 |

2. Raiderium (Cv) has three naturally occurring isotopes. Raiderium is 74.655% 44Cv, which has an atomic mass of 43.064 amu, 24.958% 46Cv, which has a mass of 46.125 amu, and 0.387% 48Cv, which has an atomic mass of 47.982 amu. Please calculate the average atomic mass of Raiderium.

3. 226Rn → _____ + [pic] α

4. What element undergoes alpha decay to form lead-208?

5. 131I → 131Xe + _____

6. 81Rb + [pic]e → _____

7. 238U → _____ + [pic] α + 2 [pic]e

8. How does gamma radiation change the atomic number and/or mass number of a nucleus?

................
................

In order to avoid copyright disputes, this page is only a partial summary.

Google Online Preview   Download