it is Tc.
The standard atomic notation for boron is ^10B.
The standard atomic notation for potassium is K-39. This indicates that the element has a mass number of 39.
MassNumberAtomicSymbolAtomicNumber
N2
I assume you mean the atomic mass. Its atomic mass is 98.91g/mol
The standard atomic notation for an atom of argon with 20 neutrons and 18 protons is 38Ar.
53 ..I 127
The atomic number of Technetium is 43.
The mass an atom of technetium isotope 98 is 16,27.10e-23 g.
The standard atomic notation for the sodium-23 atom is: Atomic number (number of protons) = 11 Mass number (sum of protons and neutrons) = 23 Symbol = Na Putting it all together: ^23Na
Technetium has the symbol of Tc. It has the atomic number of 43.
Beryllium is a solid metal at room temperature.