Beryllium-9 is the stable isotope of beryllium with relative atomic mass 9.012182, 100 atom percent natural abundance and nuclear spin 3/2.

Beryllium-9 is an isotope of the chemical element Beryllium, which, in addition to the element-specific 4 protons, has 5 neutrons in the atomic nucleus, resulting in the mass number 9. 9 Be …

Beryllium (4 Be) has 11 known isotopes and 3 known isomers, but only one of these isotopes (9 Be) is stable and a primordial nuclide. As such, beryllium is considered a monoisotopic element.

Detailed decay information for the isotope beryllium-9 including decay chains and daughter products.

BE9 or BE-9 may refer to: Beryllium-9 (Be-9 or 9 Be), an isotope of beryllium; Royal Aircraft Factory B.E.9, a British aircraft of World War I

Introduction Low energy measurements of the Be9 (y, n) reaction, performed using radioactive gamma ray sources, indicate a sharp peak in the cross section just above threshold 1, 2).

The Royal Aircraft Factory B.E.9 was a British experimental reconnaissance aircraft of World War I. The intention of the designers was to combine the high performance of tractor configuration …

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A BE-9 survey must be completed in its entirety by U.S. offices, agents, or other representatives of foreign airline operators that transport passengers or freight and express to or from the …

Beryllium is a monoisotopic element and its atomic weight is determined solely by its isotope 9 Be. The Commission last revised the standard atomic weight of beryllium in 2013 based on the …