1) What is the proton number of an atom of nitrogen elements that has 7 electrons? a) 3 b) 4 c) 7 d) 1 2) Atom X has 11 protons and 12 neutrons. Find the nucleon number of this atom. a) 33 b) 10 c) 23 d) 47 3) The total number of protons and neutrons in a nucleus is called as ...... a) nucleon number b) nucleus number c) electron number d) charge 4) The nucleon number of a potassium atom is 39. A potassium atom has 19 protons. How many neutrons and electrons are there in an potassium atom? a) neutron = 20, electron=19 b) neutron = 39, electron=10 c) neutron = 19, electron=19 d) neutron = 58, electron=19 5) If the nucleon number of an atom is 101, how many electrons are there in an atom with 51 number of neutrons? a) 5 b) 50 c) 25 d) 80

Proton and Nucleon number

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