Q1 of 40 Page 4

Who discovered the neutron?

James Chadwick in 1932 discovered the neutrons.

Neutron is a neutral particle found in the nucleus of an atom and is represented by symbol n.

More from this chapter

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9 a) What is the name given to the rays, traveling from cathode to anode?
b) Do the cathode rays always consist of electrons only, whatever be the gas enclosed in the discourage tube? 10 Why are electrons in the outermost shell known as valence electrons? 2

What is the number of valence electrons in the chlorine atom?

 3

Liquids generally have

give the number of neutrons in an atom of element .