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September 23, 1846 by Johann Gottfried Galle
Neptune was discovered on September 23, 1846, by by Johann Galle and Heinrich d'Arrest at the Berlin Observatory, using a predicted position by Urbain LeVerrier.
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∙ 6y ago
Wiki User
∙ 12y agoNeptunium was obtained for the first time by Edwin McMillan and Philip H. Abelson in 1940 at Berkeley Laboratories.
The nuclear reactions are:
23892U + n-------23992U-------23993Np + e
Wiki User
∙ 14y agoNeptunium was obtained for the first time by Edwin McMillan and Philip H. Abelson in 1940 at Berkeley Laboratories.
Wiki User
∙ 14y agoNeptunium was obtained for the first time by Edwin McMillan and Philip H. Abelson in 1940 at Berkeley Laboratories. Invented is not the correct word.
Wiki User
∙ 14y agoit was discovered by ace
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Does neptunium have a smell?
Neptunium has not a smell.
Does neptunium have luster?
Neptunium has a metallic appearance.
What is the number of valence electrons in neptunium?
The neutral atom of neptunium has 93 electrons.
Is neptunium combustible?
Neptunium is not combustible but pyrophoric as a powder.
Is neptunium shiny?
The fresh surface of neptunium is silvery.
When did neptunium become a element?
Neptunium was discovered in 1940.
Who discovered neptunium and where?
Neptunium was discovered by Edwin Mac Millan and Philipp Abelson at Berkeley National Laboratory.
Who discovered neptunium and when?
Edwin McMillan and Philip H. Abelson at the Berkeley Radiation Laboratory in 1940Edwin M. McMillan and Philip Abelson in 1940.
When was neptunium discovered?
Edwin M. McMillan and Philip Abelson in 1940.
What country was neptunium discovered?
Neptunium was prepared for the first time by Edwin Mac Millan and Philipp Abelson at Berkeley Laboratories, USA in 1940.
Where neptune and plutonium the first transuranium elements discovered?
Neptunium and plutonium were discovered in United States in 1940.
Who discovered of neptunium?
McMillan and Abelson. Please see the link for an interesting history.
How was the element neptunium discovered?
Neptunium was obtained for the first time by Edwin McMillan and Philip H. Abelson in 1940 at Berkeley Laboratories. The nuclear reactions are: 23892U + n-------23992U-------23993Np + e
Who discovered the element neptunium and where?
Neptunium was obtained for the first time by Edwin McMillan and Philip H. Abelson in 1940 at Berkeley Laboratories. The nuclear reactions are: 23892U + n-------23992U-------23993Np + e
Who discovered the periodic element neptunium?
Neptunium was obtained for the first time by Edwin McMillan and Philip H. Abelson in 1940 at Berkeley Laboratories. The nuclear reactions are: 23892U + n-------23992U-------23993Np + e
Where was neptunium discovered?
Edwin M. McMillan and Philip Abelson in 1940 - Berkeley Laboratory at the University of California, USA.
What is neptunium trifluoride used for?
Neptunium trifluoride is an intermediate for the preparation of neptunium metal.
