1. balk.

Symbol, Chemistry.

  1. berkelium.

  1. bank.
  2. book.

abbreviation for

  1. bank
  2. book

the chemical symbol for

  1. berkelium

  1. The symbol for the elementberkelium

  1. The symbol for berkelium.


  1. A synthetic, radioactive metallic element of the actinide series that is produced from americium, curium, or plutonium. Its most stable isotope has a half-life of about 1,400 years. Atomic number 97; melting point 986°C; valence 3, 4. See Periodic Table.

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