Difference between revisions of "Nuclear Equation"
(→General Formulae) |
|||
Line 30: | Line 30: | ||
| style="height:20px; width:300px; text-align:center;" |'''Find the [[element]] 'X' and calculate its [[Relative Atomic Mass|relative atomic mass]] 'A' and its [[Relative Atomic Charge|relative atomic charge]] 'Z'.''' | | style="height:20px; width:300px; text-align:center;" |'''Find the [[element]] 'X' and calculate its [[Relative Atomic Mass|relative atomic mass]] 'A' and its [[Relative Atomic Charge|relative atomic charge]] 'Z'.''' | ||
− | + | <math>{}_{84}^{210}Po \rightarrow {}_{Z}^{A}X + {}_2^4\alpha</math> | |
+ | |||
| style="height:20px; width:300px; text-align:center;" |'''Find the [[element]] 'X' and calculate its [[Relative Atomic Mass|relative atomic mass]] 'A' and its [[Relative Atomic Charge|relative atomic charge]] 'Z'.''' | | style="height:20px; width:300px; text-align:center;" |'''Find the [[element]] 'X' and calculate its [[Relative Atomic Mass|relative atomic mass]] 'A' and its [[Relative Atomic Charge|relative atomic charge]] 'Z'.''' | ||
− | + | <math>{}_{Z}^{A}X \rightarrow {}_{86}^{222}Rn + {}_2^4\alpha</math> | |
+ | |||
|- | |- | ||
| style="height:20px; width:300px; text-align:left;" |'''1. Calculate the [[Relative Atomic Mass|relative atomic mass]] by looking at the top row of numbers.''' | | style="height:20px; width:300px; text-align:left;" |'''1. Calculate the [[Relative Atomic Mass|relative atomic mass]] by looking at the top row of numbers.''' | ||
+ | 210 = A + 4 | ||
+ | |||
+ | A = 206 | ||
| style="height:20px; width:300px; text-align:left;" |'''1. Calculate the [[Relative Atomic Mass|relative atomic mass]] by looking at the top row of numbers.''' | | style="height:20px; width:300px; text-align:left;" |'''1. Calculate the [[Relative Atomic Mass|relative atomic mass]] by looking at the top row of numbers.''' | ||
+ | A = 222 + 4 | ||
+ | |||
+ | A = 226 | ||
|- | |- | ||
| style="height:20px; width:300px; text-align:left;" |'''2. Calculate the [[Relative Atomic Charge|relative atomic charge]] by looking at the bottom row of numbers.''' | | style="height:20px; width:300px; text-align:left;" |'''2. Calculate the [[Relative Atomic Charge|relative atomic charge]] by looking at the bottom row of numbers.''' | ||
+ | 84 = Z + 2 | ||
+ | |||
+ | Z = 82 | ||
| style="height:20px; width:300px; text-align:left;" |'''2. Calculate the [[Relative Atomic Charge|relative atomic charge]] by looking at the bottom row of numbers.''' | | style="height:20px; width:300px; text-align:left;" |'''2. Calculate the [[Relative Atomic Charge|relative atomic charge]] by looking at the bottom row of numbers.''' | ||
+ | Z = 86 + 2 | ||
+ | |||
+ | Z = 88 | ||
|- | |- | ||
| style="height:20px; width:300px; text-align:left;" |'''3. Since the [[Relative Atomic Charge|relative atomic charge]] is the same as the [[Atomic Number|atomic number]] look up the [[element]] on the [[Periodic Table|periodic table]].''' | | style="height:20px; width:300px; text-align:left;" |'''3. Since the [[Relative Atomic Charge|relative atomic charge]] is the same as the [[Atomic Number|atomic number]] look up the [[element]] on the [[Periodic Table|periodic table]].''' | ||
+ | <math>{}_{82}^{206}Pb</math> | ||
| style="height:20px; width:300px; text-align:left;" |'''3. Since the [[Relative Atomic Charge|relative atomic charge]] is the same as the [[Atomic Number|atomic number]] look up the [[element]] on the [[Periodic Table|periodic table]].''' | | style="height:20px; width:300px; text-align:left;" |'''3. Since the [[Relative Atomic Charge|relative atomic charge]] is the same as the [[Atomic Number|atomic number]] look up the [[element]] on the [[Periodic Table|periodic table]].''' | ||
+ | <math>{}_{88}^{226}Ra</math> | ||
|} | |} | ||
Revision as of 10:51, 8 March 2019
Contents
Key Stage 4
Meaning
A nuclear equation is a type of symbol equation used to show the changes which take place in a radioactive decay.
About Nuclear Equations
- Nuclear equations can be used to predict the products of a radioactive decay or a series of decays which take place one after the other.
- In nuclear equations the relative atomic mass and relative atomic charge accompany the symbols for the elements and the ionising radiation they produce.
General Formulae
Alpha Decay\[{}_Z^AX \rightarrow {}_{Z-2}^{A-4}Y + {}_2^4\alpha\]
Beta Decay\[{}_Z^AX \rightarrow {}_{Z+1}^{A}Y + {}_{-1}^0\beta\]
Gamma Emission\[{}_Z^AX \rightarrow {}_Z^AX + {}_0^0\gamma\]
Neutron Decay\[{}_Z^AX \rightarrow {}_{Z}^{A-1}Y + {}_0^1n\]
Examples
\({}_{92}^{238}U \rightarrow {}_{90}^{234}Th + {}_2^4\alpha\)
\({}_{28}^{65}Ni \rightarrow {}_{29}^{65}Cu + {}_{-1}^0\beta\)
\({}_{42}^{99}Mo \rightarrow {}_{42}^{99}Mo + {}_0^0\gamma\)
\({}_{8}^{18}O \rightarrow {}_{8}^{17}O + {}_0^1n\)
Calculating the Element/Isotope
Find the element 'X' and calculate its relative atomic mass 'A' and its relative atomic charge 'Z'.
\({}_{84}^{210}Po \rightarrow {}_{Z}^{A}X + {}_2^4\alpha\) |
Find the element 'X' and calculate its relative atomic mass 'A' and its relative atomic charge 'Z'.
\({}_{Z}^{A}X \rightarrow {}_{86}^{222}Rn + {}_2^4\alpha\) |
1. Calculate the relative atomic mass by looking at the top row of numbers.
210 = A + 4 A = 206 |
1. Calculate the relative atomic mass by looking at the top row of numbers.
A = 222 + 4 A = 226 |
2. Calculate the relative atomic charge by looking at the bottom row of numbers.
84 = Z + 2 Z = 82 |
2. Calculate the relative atomic charge by looking at the bottom row of numbers.
Z = 86 + 2 Z = 88 |
3. Since the relative atomic charge is the same as the atomic number look up the element on the periodic table.
\({}_{82}^{206}Pb\) |
3. Since the relative atomic charge is the same as the atomic number look up the element on the periodic table.
\({}_{88}^{226}Ra\) |
Find the element 'X' and calculate its relative atomic mass 'A' and its relative atomic charge 'Z'.
xxxxx |
Find the element 'X' and calculate its relative atomic mass 'A' and its relative atomic charge 'Z'.
xxxxx |
1. Calculate the relative atomic mass by looking at the top row of numbers. | 1. Calculate the relative atomic mass by looking at the top row of numbers. |
2. Calculate the relative atomic charge by looking at the bottom row of numbers. | 2. Calculate the relative atomic charge by looking at the bottom row of numbers. |
3. Since the relative atomic charge is the same as the atomic number look up the element on the periodic table. | 3. Since the relative atomic charge is the same as the atomic number look up the element on the periodic table. |
Find the element 'X' and calculate its relative atomic mass 'A' and its relative atomic charge 'Z'.
xxxxx |
Find the element 'X' and calculate its relative atomic mass 'A' and its relative atomic charge 'Z'.
xxxxx |
1. Calculate the relative atomic mass by looking at the top row of numbers. | 1. Calculate the relative atomic mass by looking at the top row of numbers. |
2. Calculate the relative atomic charge by looking at the bottom row of numbers. | 2. Calculate the relative atomic charge by looking at the bottom row of numbers. |
3. Since the relative atomic charge is the same as the atomic number look up the element on the periodic table. | 3. Since the relative atomic charge is the same as the atomic number look up the element on the periodic table. |
Find the element 'X' and calculate its relative atomic mass 'A' and its relative atomic charge 'Z'.
xxxxx |
Find the element 'X' and calculate its relative atomic mass 'A' and its relative atomic charge 'Z'.
xxxxx |
1. Calculate the relative atomic mass by looking at the top row of numbers. | 1. Calculate the relative atomic mass by looking at the top row of numbers. |
2. Calculate the relative atomic charge by looking at the bottom row of numbers. | 2. Calculate the relative atomic charge by looking at the bottom row of numbers. |
3. Since the relative atomic charge is the same as the atomic number look up the element on the periodic table. | 3. Since the relative atomic charge is the same as the atomic number look up the element on the periodic table. |