{:(1. "Discovered the cathode rays " , (a) "E. Goldstein"), ( 2. "Discovered the protons", (b) "J.J. Thomson" ), (3. "Discovered the neutrons ",(c ) "William Crookes") , (4. "Plum pudding model",(d) "Lord Rutherford" ) , ( 5. "Planetary model of an atom ", (e ) "James Chadwick"):}

{:(1. "Discovered the cathode rays " , (a) "E. Goldstein"), ( 2. "Disc

1.	{:(1. "Discovered the cathode rays " , (a) "E. Goldstein"), ( 2. "Discovered the protons", (b) "J.J. Thomson" ), (3. "Discovered the neutrons ",(c ) "William Crookes") , (4. "Plum pudding model",(d) "Lord Rutherford" ) , ( 5. "Planetary model of an atom ", (e ) "James Chadwick"):}
Answer» ANSWER :1. C 2. a 3. e 4. b 5. d