Supply the missing isotope in the nuclear equation below.  When entering isotopes, use the text format. For example, 54Cr should be entered as Cr-54.  The symbols for fundamental particles are given in the table. 249Cf + ____  → 263Sg + 2 n

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Atoms and Molecules

An atom is the smallest unit of an element that possesses all the properties of that particular element. Molecules are the smallest unit of a substance that possess all the properties of that particular substance.