61
Pm stands for Promethium in the periodic table. It is a rare earth element with the atomic number 61.
The sixty first element in the periodic table of elements is promethium. It is a rare earth metal that is not found naturally on Earth and is typically produced in nuclear reactors.
Promethium is placed in the period 6 of the periodic table, lanthanoids family.
Promethium belongs in the 7th family. The 7th family is The Lanthanide family.
Promethium is an element of the periodic table, atomic number 61, chemical symbol Pm.
90: The first 92 elements except technetium and promethium.
90: The first 92 elements except technetium and promethium.
Promethium exist in nature only in traces; it is supposed that the Earth crust contain less than 1 kg promethium.
Yes, promethium is a metallic element that exhibits a silvery luster. It belongs to the lanthanide series of the periodic table and is known for its radioactive properties. Due to its rarity and instability, promethium is not commonly encountered in everyday applications.
Technetium, Promethium, and all elements heavier than Bismuth.
Technetium (43), Promethium (61), and all the transuranic elements are synthetic.
Evry atom up to Uranium on the periodic table minus Technetium and Promethium