The name come from the German 'Bisemutum' a corruption of 'Weisse Masse' meaning white mass.
<span>Helium is the noble gas with only 2 valence electrons
I Hope This helps
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Solid liquid and gas is the answer
K stands for thousands
1 k = 1000
1 milli = 0.001
covert 878kg to g
878 x 1000=878000 g or (8.78^5)
convert g to mg
878000 / 0.001 =878,000,000
=8.78^8
^ or E means power of