Dubnium
atomic number 105
Technetium is placed in the group 7 (manganese group) of the periodic table.
Transition metals. in fact, it is the Only radioactive transition metal!
Technetium is placed in the group 7 (manganese group) and period 5 of the periodic table of Mendeleev.
Uranium does not have a group it belongs to, but it is in period 7.
Platinum: Pt Atomic Number: 78 Atomic Weight: 195.084 Melting Point: 2041.55 K (1768.4°C or 3215.1°F) Boiling Point: 4098 K (3825°C or 6917°F) Density: 21.46 grams per cubic centimeter Phase at Room Temperature: Solid Element Classification: Metal Period Number: 6 Group Number: 10 Group Name:none
The element technetium is a transitional metal. A link is provided to the Wikipedia article on technetium.
Technetium is placed in the group 7 (manganese group) of the periodic table.
Group 7 Period 5
p_enis
No, Al is in group 13 in period 3, it is a metal (Transition elements are in group 3 to 12 in period 4 to 7)
Dubnium is an artificial chemical element, metal, solid, radioactive, placed in period 7 and group 5 of the periodic table of Mendeleev.
Transition metals. in fact, it is the Only radioactive transition metal!
Dubnium is an artificial chemical element, metal, solid, radioactive, placed in period 7 and group 5 of the periodic table of Mendeleev.
Radium is an alkaline earth metal, group 2, period 7; Ra is a radioactive.
Nickel: Ni, atomic number 28, group 10, period 4.
Technetium is placed in the group 7 (manganese group) of the periodic table.
Tc The element is Technetium