Answer to Question #68576 in General Chemistry for Richard

Question

complete this table. note that the atoms/ions are not necessarily neutral

element: Se __ __
mass number: 78 65 __
number of nuetrons: __ 36 43
number of protons: __ __ 36
number of electrion: __ __ 36
charge: -2 +1 __

Answer 1

Element Se Cu Kr

Mass number 78 65 79

neutrons 44 36 43

protons 34 29 36

electrons 36 28 36

charge -2 +1 0