5 terms

Module #16-Vocab Part 1

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Terms in this set (...)

Nuclear Fusion
The process by which two or more small nuclei fuse together to make a bigger nucleus.
Nuclear Fission
The process by which a large nucleus is split into smaller nuclei.
Critical Mass
The amount of isotope necessary to sustain a chain reaction.
Absolute Magnitude
The brightness of a star, corrected for distance, on a scale of negative 8 to positive 19. The smaller the number, the brighter the star.
Apparent Magnitude
The brightness of a star as seen in the night sky. The smaller the number, the brighter the star.