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PS8 ch. 16
"Atomic energy"
Question | Answer |
---|---|
what is Alpha decay? | released from an Alpha particle from a nucleus. mass #4 and a 2+ charge. |
what is Beta decay? | released from a Beta particle from a nucleus. it has a 1- and 1+ charge. |
what is Gamma decay? | involves the release of Gamma rays from the nucleus. energy is also given off during Alpha decay and Beta decay. |
what is a half-life? | the amount of time it takes for one-half of the nucleus of a radioactive isotope to decay. |
what is nuclear fission? | the process of when a large radioactive nucleus splits into two small nuclei and releases energy. |
what is nuclear fusion? | two or more nuclei with small masses fuse to form a larger nucleus. |
which particle has the smallest wavelength? | Gamma rays can penatrate more objects than other particles. |
what causes a nuclear chain reaction? | during a process of nuclear fission it will split a nuclei and that atom will spread electrons to others and causes a chain raction. |