Hello!
When finding the chemical formula of a compound, we will need to find the charges of each element/bond.
Looking at our period table, sodium has a +1 charge, written as Na 1+, and sulfate has a charge of -2, and it is written as SO4 2-.
Now, we need to make the charges equivalent. To do this, we need to "criss-cross" the charges. This means that sodium will need to additional atoms to make the charges equal, and sulfate will need one.
Therefore, the chemical formula for sodium sulfate is: Na2SO4.
Answer:
The answer is C.
"The atomic number and mass number."
Explanation:
Got it right on Edge!
Have a good day!
1. L
Number one because the lines match up
The <span>12C</span><span> isotope. Hope this helps.</span>