An element’s atomic number is 80. how many protons would an atom of this element have?

Complete the table for ion charge based upon their losing or gaining electrons in the outer shell. (use the periodic table as necessary.) group most likely ionic charge # of valence electrons i +1 ii +2 iii +3 iv +4 or -4 v -3 vi -2 vii -1 viii 0

What term describes technology that operates on an atomic level

What type of matter is made of only one kind of atom