43
Technetium is the chemical element with atomic number 43 and symbol Tc.
The atomic number of technetium (Tc) is 43.The atomic weight of Tc is 98 grams per mole.See the Web Links to the left of this answer for a periodic table with more information about this element!
Technetium has 43 protons and 43 electrons. For each isotope the number of neutrons is different. Number of neutrons = Mass number of an Tc isotope - 43
No. Tc or technetium is a transition metal
Technetium has 43 protons, 43 electrons (in the neutral atom), and a differing number of neutrons depending on which isotope of the element is being considered. There are no stable isotopes of technetium, and it's discovery was a long time coming, though it had been predicted to exist by none other than Mendeleev himself. The longest lived isotopes (many thousand years half-lives) have 54, 55, and 56 neutrons, and isotopes have been recorded with from 42 to 75 neutrons. Other than the three isotopes mentioned, the isotopes of technetium have half-lives measured in days to seconds to small fractions of a second. Outside 97Tc, 98Tc and 99Tc, none of the atoms of this synthetic transition metal hang around long.
Technetium (Tc) Atomic number = number of protons
Pallidium
Technetium is the chemical element with atomic number 43 and symbol Tc.
The atomic number of technetium (Tc) is 43.The atomic weight of Tc is 98 grams per mole.See the Web Links to the left of this answer for a periodic table with more information about this element!
Technicium (Tc) can be found in period 5 group VII of the periodic table. It is a transition metal and so is a d-block element. Thus the electron configuration is [Kr]4d5 5s2
Technetium has 43 protons and electrons.
The element that has an atomic number of 43 is Technetium. It was discovered in 1937 and its symbol is Tc.
Technetium (Tc) has atomic number 43, which means it has 43 electrons.
Technetium (Tc) has 43 protons.
Technetium has 34 isotopes, with no stable isotopes
The element in group 7 period 5 is element 43, Technetium (Tc). Its chemical symbol is Tc.
Technetium has 43 protons and 43 electrons. For each isotope the number of neutrons is different. Number of neutrons = Mass number of an Tc isotope - 43