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==Key Stage 5==
===Meaning===
The law of '''conservation of Baryon number''' is the observation that in all [[Fundamental Interactions|fundamental interactions]] the sum of [[Baryon]]s and [[Baryon|anti-baryon]]s is the same before and after the [[Fundamental Interaction|interaction]].
===About Conservation of Baryon Number===
: [[Baryon]]s have a '''baryon number''' of 1.
: [[Baryon|Anti-baryon]]s have a '''baryon number''' of -1.
: If a [[Baryon]] comes into existence an [[Baryon|anti-baryon]] must also come into existence.
: '''Conservation of Baryon Number''' can be applied to all [[Fundamental Interactions|fundamental interactions]] to balance the [[Nuclear Equation|equations]] and to ascertain the types of [[Subatomic Particle|particles]] produced.
===Examples===
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