This element is technetium (Tc).
Technetium (element number 43) in 1937.
Technetium - its atomic number is 43.
Technetium. Element 43, no stable isotopes.
43
43 electrons :)
There is no element with that atomic mass, the element that comes the closest is Ununbium with an atomic mass of 277.0.
The element that has an atomic number of 43 is Technetium. It was discovered in 1937 and its symbol is Tc.
The element name for He is Helium
The element name for He is Helium
9343Tc (Technetium)
In the Greek language the meaning of technetos is artificial.
Coined in 1947, the term identifies a chemical element with symbol Tc and atomic number 43.