1.) how can atomic number and mass number be used to find the numbers of protons, electrons, and neutrons?
2.) an atom is identified as platinum-195
a. what does the number represent?
b. symbolize this atom using superscripts and subscripts.
3.) how are isotopes of the same element alike? how are they different?
4.) determine the number of protons, electrons, and neutrons in each of the five isotopes in zinc.
5.) list the number of protons, neutrons, and electrons in each pair of isotopes.
a.) 6/3li, 7/3li
b.) 42/20ca, 44/20ca
c.)78/34se, 80/34se
6.) the atomic masses of elements are generally not whole numbers. explain why.
*you do not need any more than one sentance for #1, #3, and #6*