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PBHS Nuclear Changes
Nuclear Changes
| Question | Answer |
|---|---|
| What is a beta particle? | an electron |
| What is an alpha particle? | a helium nucleus |
| Which kind of ionizing radiation is just energy coming out of a nucleus? | gamma radiation |
| What is the reason for radioactive decay? | the nucleus is unstable |
| An isotope is named by what? | its mass number |
| Losing an alpha particle reduces the atomic number by how many protons? | two |
| Losing a beta particle causes the atomic number to do what? | increase by 1 |
| What is beta decay? | the nucleus emitting a beta particle |
| What is alpha decay? | the nucleus emitting an alpha particle |
| In nuclear decay the lowest energy form is what? | an alpha particle |
| In nuclear decay the highest energy form is what? | gamma rays |
| A piece of paper is all it takes to stop which type of radiation? | alpha radiation |
| Which kind of nuclear radiation can pass right through a person? | gamma radiation |
| Which particle is really a helium nucleus? | an alpha particle |
| Which nuclear radiation form is really high speed electrons? | beta particles |
| Which type of nuclear radiation has the greatest penetrating ability? | gamma rays |
| The nucleus breaking down by emitting beta particles is called what? | beta decay |
| The nucleus breaking down by emitting alpha particles is called what? | alpha decay |
| What are atoms of the same element with different numbers of neutrons called? | isotopes |
| What do isotopes of the same element have different numbers of? | neutrons |
| Isotopes of the same element have to have the same number of what? | protons |
| The amount of time needed for half of a sample of radioactive material to break down is called what? | the half life |
| How much of a radioactive sample will be left after one half-life? | 1/2 |
| Nuclear radiation is emitted by what kind of isotopes? | radioactive isotopes |
| Radiation that has enough energy to knock/rip off electrons is called what? | ionizing radiation |
| What do nuclear power plants produce? | electricity |
| What is the name of the nuclear power plant that had a melt down and terrible nuclear accident in the Soviet Union in 1986? | Chernobyl |
| The first radioactive element discovered was which one? | uranium |
| Which nuclear particle can enter the skin, but has less energy than gamma rays? | beta particles |
| Which radioactive particle is made of 2 protons and 2 neutrons? | an alpha particle |
| What makes an alpha particle helium? | 2 protons |
| A radioisotope is an isotope that is what? | radioactive |
| The region around the Earth that deflects most of the sun's radiation is called what? | magnetosphere |
| The magnetosphere and the atmosphere protect Earth from most of the radiation in the what coming at us from the sun all the time? | solar wind |
Created by:
gkarlish
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