Element with atomic number 5
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AnswerCrossword Clue
BORONElement with atomic number 5
seaborgiuman artificially produced radioactive element with atomic number 106
seaborgiumsSEABORGIUM, an artificially produced radioactive element with atomic number 106
BORONElement with a low atomic number that is not found naturally on Earth
californiumThe chemical element of atomic number 98, a radioactive metal of the actinide series, first produced by bombarding curium with helium ions
technetiumThe chemical element of atomic number 43, a radioactive metal. Technetium was the first element to be created artificially, in 1937, by bombarding molybdenum with deuterons
lawrenciumThe chemical element of atomic number 103, a radioactive metal of the actinide series. Lawrencium does not occur naturally and was first made by bombarding californium with boron nuclei
berkeliumThe chemical element of atomic number 97, a radioactive metal of the actinide series. Berkelium does not occur naturally and was first made by bombarding americium with helium ions
mendeleviumThe chemical element of atomic number 101, a radioactive metal of the actinide series. It does not occur naturally and was first made in 1955 by bombarding einsteinium with helium ions
isotopeany of two or more species of atoms of a chemical element with the same atomic number and nearly identical chemical behavior but with differing atomic mass or mass number and different physical properties
neptuniumThe chemical element of atomic number 93, a radioactive metal of the actinide series. Neptunium was discovered as a product of the bombardment of uranium with neutrons, and occurs only in trace amounts in nature
superheavyRelating to or denoting an element with an atomic mass or atomic number greater than those of the naturally occurring elements, esp. one belonging to a group above atomic number 110 having proton/neutron ratios that in theory confer relatively long half-lives