Answer
(a) Atomic number - 29
Copper (Cu)
(b) Atomic number - 84
Polonium (Po)
(c) Atomic number - 17
Chlorine (Cl)
(d) Atomic number - 88
Radium (Ra)
Work Step by Step
(a) Atomic number - 29
Copper (Cu)
(b) Atomic number - 84
Polonium (Po)
(c) Atomic number - 17
Chlorine (Cl)
(d) Atomic number - 88
Radium (Ra)