Number of ni atoms in 3.4 moles of ni

Nuclear fusion is the source of energy for stars. besides hydrogen, which other element is most likely also common in stars?

Which statement is true about this reaction? 14n+1h 15o it is a practical source of energy on earth. it occurs only outside the solar system. its product is heavier than each of its reactants. it shows the critical mass of an element.

If two identical atoms are bonded, what kind of molecule is formed