Neptunium is a chemical element that has the symbol Np on the periodic table. It has the atomic number 93 which means it has 93 protons and electrons in its atoms. It is named after the planet Neptune in the same way as Uranium is named after the planet Uranus. Neptunium was discovered in the year of 1940 by two men named Edwin McMillan and Phillip H. Abelson at Berkeley Radiation Center of the University of California. Neptunium is a silvery- metallic element and is radioactive. Its melting point is 637 degrees Celsius and its boiling point is 4000 degrees Celsius. Its atomic mass is 237.
Neptunium
Questions and Answers
Q: What is neptunium?
A: Neptunium is a chemical element with the symbol Np on the periodic table.
Q: What is the atomic number of neptunium?
A: The atomic number of neptunium is 93, which means it has 93 protons and electrons in its atoms.
Q: How did neptunium get its name?
A: Neptunium is named after the planet Neptune, in the same way that Uranium is named after the planet Uranus.
Q: Who discovered neptunium?
A: Neptunium was discovered in 1940 by Edwin McMillan and Phillip H. Abelson at the Berkeley Radiation Center of the University of California.
Q: What are the physical properties of neptunium?
A: Neptunium is a silvery-metallic element and is radioactive. Its melting point is 637 degrees Celsius and its boiling point is 4000 degrees Celsius.
Q: What is the atomic mass of neptunium?
A: The atomic mass of neptunium is 237.
Q: Where is neptunium located on the periodic table?
A: Neptunium is located in the actinide series of the periodic table.