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Tc - 43 - Technetium
Pm - 61 - Promethium
Po - 84 - Polonium
At - 85 - Astatine
Rn - 86 - Radon
Fr - 87 - Francium
Ra - 88 - Radium
Ac - 89 - Actinium
Th - 90 - Thorium
Pa - 91 - Protactinium
U - 92 - Uranium
Np - 93 - Neptunium
Pu - 94 - Plutonium
Am - 95 - Americium
Cm - 96 - Curium
Bk - 97 - Berkelium
Cf - 98 - Californium
Es - 99 - Einsteinium
Fm - 100 - Fermium
Md - 101 - Mendelevium
No - 102 - Nobelium
Lr - 103 - Lawrencium
Rf - 104 - Rutherfordium
Db - 105 - Dubnium
Sg - 106 - Seaborgium
Bh - 107 - Bohrium
Hs - 108 - Hassium
Mt - 109 - Meitnerium
Ds - 110 - Darmstatium
Rg - 111 - Roentgenium
Cn - 112 - Copernicium
Uut - 113 - Ununtrium
Uuq - 114 - Ununquadium
Uup - 115 - Ununpentium
Uuh - 116 - Ununhexium
Uus - 117 - Ununseptium
Uuo - 118 - Ununnoctium
Neutrons
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What are radioactive elements on the periodic table?
In general, the elements with higher atomic numbers are the most radioactive and they are found at the bottom of the Periodic Table of Elements
Where do radioactive atoms start on the periodic table?
After lead, all elements on the periodic table have only radioactive isotopes.
Region of the periodic table where most radioactive elements are found?
Group 3 of the periodic table contains many of the radioactive elements.
What families have no radioactive elements?
Radioactive elements exist in all groups of the periodic table.
What element family have no radioactive elements?
Radioactive elements exist in all groups of the periodic table.
Name 10 elements in the periodic table that are radioactive?
Hydrogen
What 3 families contain no radioactive elements?
All periodic table groups contain elements with radioactive isotopes.
What are the ten elements in thre periodic table that are radioactive?
all elements after uranium (atomic number 92) are radioactive.
Which atoms will always be radioactive?
Almost all the lower elements in the periodic table will always be radioactive.
What elements on the periodic table is a radioactive element?
Lanthanides and Actinides probably
The period of elements that are all radioactive?
All elements comprising the period 7 in the periodic table are radioactive. In total this period has 32 elements.
What period on the periodic table of elements contains radioactive elements and what are they called?
it was found in 1896. you can not find them on the periodic table. you may find some, but often some are.
