Charge # = protons - electons
Mass # = protons + neutrons
so that would be
3-3= charge#
3+4= mass#
What is the percent by mass of sodium in Na2SO4? total mass of element in compound molar mass of compound Use %Element x 100
The largest in size usually attracks a population of what it is and whether the people think it is popular
Answer: is C
Explanation:
Both the atomic mass and the atomic number increase from left to right
B. Two significant figures
Your final answer can only have as many significant figures as the number that has the least amount of significant figures in it, which is (0.0065)
