2. proton
electron
Dalton Thomson
Neils Bohr
Rutherford
electron
proton
proton
electron
James Chardwick
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4. Number of proton = Proton number
Nucleon number =Number of proton
Atom X has 17 number of proton and 18 number of neutron.
What is the proton number of atom X?
+Number of neutron
Atom X has 17 number of proton and 18 number of neutron.
What is the nucleon number of atom X?
Nucleon number =number of proton + number of neutron
=17 +18
=35

5. Standard Represantation of an atom
Nucleon number
Proton number
Symbol of elements

6. Atom Z has 11 number of proton and 20 number of
neutron.
Write the standard representation of atom Z.

8. Isotopes are atoms of the same element with
same number of proton but different number of neutron

9. Refer to text book
and discuss the
uses of isotope with your
partner.

10. Refer to text book
and discuss the
uses of isotope with your
partner.