How can you determine the number of protons in an element
You can determine the number of protons in an element by first locating the element in the periodic table. Look for the atomic number of the element so as to get the number of protons. This is because atomic number is the one that shows how many protons are there in an element. Read more details at http://www.ehow.com/how_4828042_number-protons-neutrons-electrons-element.html.
From the Atomic numberAtomic number = number of protons (+) = number of electrons (-)
Easy. Google. Same way I found my answer.