Meitnerium

Meitnerium is a chemical element in the periodic table. Its atomic number is 109. It is not found on earth naturally. Because of this, it needs to be made in a science laboratory. Its half life, or the amount of time it takes for half of the element to go away is a little over one second. Meitnerium was first made in 1982.

Lise Meitner in 1946.

The element is named in honor of Lise Meitner (1878-1968).

The two letter abbreviation is Mt and is a solid. Nobody knows for sure what meitnerium looks like, but scientists think it is a white, gray, or silver color.

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Periodic table
H   He
Li Be   B C N O F Ne
Na Mg   Al Si P S Cl Ar
K Ca   Sc Ti V Cr Mn Fe Co Ni Cu Zn Ga Ge As Se Br Kr
Rb Sr   Y Zr Nb Mo Tc Ru Rh Pd Ag Cd In Sn Sb Te I Xe
Cs Ba La Ce Pr Nd Pm Sm Eu Gd Tb Dy Ho Er Tm Yb Lu Hf Ta W Re Os Ir Pt Au Hg Tl Pb Bi Po At Rn
Fr Ra Ac Th Pa U Np Pu Am Cm Bk Cf Es Fm Md No Lr Rf Db Sg Bh Hs Mt Ds Rg Cn Nh Fl Mc Lv Ts Og
Alkali metals Alkaline earth metals Lanthanides Actinides Transition metals Poor metals Metalloids Other nonmetals Halogens Noble gases