Answer: How many protons are in an atom of tin? 50
How many electrons are in an atom of tin?
50
How many neutrons are in an atom of tin? Round your answer to the nearest whole number. 69
Explanation: The average weight is 118.71, so, on average, a tin atom has 69.71 neutrons (118.71 -50). A stable atom of Tin (Sn)
Atomic number: 50 Protons: 50 Electrons:50 Neutrons: 69 Mass Number: 119 (rounded-off) The Mass number is equal to the sum of protons and neutrons.
