What is the name of the element? protons: 92 neutrons: 146
a.) uranium
b.) xenon
c.) protactinium
d.) there is no such element.

Start an single atom tab. observe the decay of polonium-211. after each decay, press the reset nucleus button to watch the process again. write a description of alpha decay for po-211

Acompound has a molecular weight of 12.124 atomic mass units and the empirical formula c3h40. what is the molecular formula of the compound?

Draw two cyclic constitutional isomers of cis-1