NICK J IS OFF THE CHAIN
New member
1.) How do isotopes of an element differ from the elements "normal" form
2.) 68% of an element has a mass of 132., 11% of the element has a mass of 131, and the other 21% has a mass of 130. What mass number will appear on the periodic table and which element is this?
2.) 68% of an element has a mass of 132., 11% of the element has a mass of 131, and the other 21% has a mass of 130. What mass number will appear on the periodic table and which element is this?