C2 Topic 1 revision Must describe how Mendeleev structured his periodic table. Should create electron structures for given atoms. Could work out Ar of.

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C2 Topic 1 revision Must describe how Mendeleev structured his periodic table. Should create electron structures for given atoms. Could work out Ar of given elements. ------------------------------------------------ Starter: What is abundance?

Fill in the table Subatomic particle Charge Mass Location Proton Neutron Electron

Find the proton, electron and neutron number for these elements: Pt Sb Po Te

Mendeleev What was unique about his periodic table? How did he order his periodic table? How many more protons does Zn have than Ca?

Drawing electron structures. How many electrons are allowed on the 3rd shell. Draw the structure of these atoms with electron configurations. Ca F Al

Periodic table What does group number tell you about electron structure? What does period number tell you about electron structure for the 1st 20 elements? What charge does a group 3 element have? What charge does a group 5 element have? What charge do group 4 elements possess?

Isotopes What is an isotope? What is Ar? How do you work out Ar? Here are two isotopes of carbon: C12 and C14 How do these two isotopes of carbon differ?

Exam question. 75% of chlorine is Cl35, 25% is Cl37... What is the Ar of Cl? What is the relative atomic mass of thallium which is made up from 30 per cent thallium-203 and 70 per cent thallium-205?