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Seaborgium facts for kids

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General properties
Name, symbol, number seaborgium, Sg, 106
Group, period, block 67, d
Standard atomic weight {{{atomic mass}}} g/mol
Electron configuration [Rn] 5f14 6d4 7s2
Electrons per shell 2, 8, 18, 32, 32, 12, 2 (Image)
Physical properties
Phase solid ((predicted) )
Density (near r.t.) 35.0 g/cm3
Atomic properties
Ionization energies
1st: {{{1st ionization energy}}} kJ/mol
2nd: {{{2nd ionization energy}}} kJ/mol
3rd: {{{3rd ionization energy}}} kJ/mol
Atomic radius 132 pm
Covalent radius 143 pm
Crystal structure body-centered cubic
Crystal structure note (predicted)
CAS registry number 54038-81-2
Most stable isotopes
Main article: Isotopes of seaborgium
iso NA half-life DM DE (MeV) DP
265Sg syn 8.9 s α 261Rf
265mSg syn 16.2 s α 261mRf
267Sg syn 1.4 min 17% α 263Rf
83% SF
269Sg syn 14 min α 265Rf
271Sg syn 1.6 min 67% α 267Rf
33% SF

Seaborgium is a chemical element. In the past, it has been named eka-tungsten but is now named seaborgium. It has the symbol Sg. It has the atomic number 106. Seaborgium is a radioactive element that does not exist in nature. It has to be made. The most stable isotope is 271Sg. Seaborgium-271 has a half-life of 2.4 minutes.

What Seaborgium looks like is not known because not enough has been made to see it with human eyesight, but since it is in the same period as Tungsten in the periodic table, it's appearance and may be similar to such.

The element is named in honor of Glenn Seaborg.

Seaborgium is a transuranium element. This means that it is "beyond" (trans) the element Uranium in the sequence of elements.

Mendeleev predicted that Seaborgium would exist. He called the element eka-tungsten because of its location was near Tungsten in the Periodic Table. The chemistry of seaborgium is like the chemistry of tungsten.

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