Ruthenium
Ru is symbol of Ruthenium element having atomic number 44 and is placed in group 8 of the periodic table.
Au is gold.
Unp is not a standard atomic symbol. It does not correspond to any known element in the periodic table.
U is the atomic symbol for the element uranium.
Ru is Ruthenium Name: Ruthenium Symbol: Ru Atomic Number: 44 Atomic Mass: 101.07 amu Melting Point: 2250.0 °C (2523.15 K, 4082.0 °F) Boiling Point: 3900.0 °C (4173.15 K, 7052.0 °F) Number of Protons/Electrons: 44 Number of Neutrons: 57 Classification: Transition Metal Crystal Structure: Hexagonal Density @ 293 K: 12.2 g/cm3 Color: silvery http://www.chemicalelements.com/elements/ru.html
Uranium with the symbol U and atomic number 92.
Bohrium, atomic number 107
The chemical symbol of rutherfordium is Rf.
If you mean 'U' that is Uranium. It has atomic number 92.
Ruthenium is a transition metal in the periodic table. It belongs to Group 8 and Period 5. Ruthenium has the atomic number 44 and the symbol Ru.
Manganese is a chemical Chemical_element, designated by the symbol Mn. It has the atomic number 25.(sorry for the previous persons answer)
The Atomic Symbol is B