Element 118 is a noble gas, which means it would be largely unreactive. Only a few atoms of this gas have been synthesized.
noble halogens
Noble Gas
There are 117 elements in the periodic table. Elements 1-116 and element 118. IMPROVED ANSWER --------------------------------------------------------------------------------------- 118, but element 117 is so unstable they do not officially count it as being an element on the periodic table yet.
There are 118 neutrons in the element gold.
cadium
118
118 will be its atomic number.
Who told you that chromium had 118 electrons - there are only 24. Check it out with Wikipedia. There you find the element that really has 118 electrons. Happy hunting. (PS - Hint - there is a very close correlation between the number of electrons and the atomic number of the element.)
There is not 400th element. So far we only have up to element 118: ununoctium
Ge Germanium
Ge Germanium
I would expect it is Silicon, same as on Earth.