Chapter 7 - Radioactivity Flashcards
0
Q
3 types of radiation?
A
1 alpha radiation
• positively charged
• biggest particle. 4 he. Or 4 a
• leaves nucleus 2 2
2 beta radiation
• negative electron. 0 b or 0 e
• mass is 0. -1 -1
• shoots out lots of energy
3 gamma radiation. 0. Y
• * means it has more energy. 0
1
Q
What are isotopes?
A
Different atoms with same protons but different neutrons
Ex: mass number on top
Atomic number on bottom
2
Q
What are the 2 rules of a nucleur equation?
A
- The sum of the MASS NUMBERS do not change
2. The same of CHARGES in the nucleus do not change
3
Q
What is fission?
A
The splitting of a massive nucleus into 3 smaller nuclei, usually unstable
4
Q
What is fusion?
A
2 low made nuclei come together to make a massive nuclei
Ex: sun
