The nucleus of an atom is a. negatively charged and has a high density b. positively charged and has a high density c. positively charged and has a low density d. negatively charged and has a low density

The difference between the atomic number of an element and the element’s atomic mass is the number of ions.

What material does not melt at any temperature

For the reaction shown, calculate how many moles of no2 form when each of the following completely reacts. 2n2o5(g)→4no2(g)+o2(g) part a 1.0 mol n2o5 express your answer using two significant figures. nothing mol m o l request answer part b 5.4 mol n2o5 express your answer using two significant figures.