The Periodic Table – Organization
Wksh. “Finding Your Way Around the Periodic Table”
1. in order of increasing mass
Ar to K because heavy isotopes of Ar
most massive is Mt = Meitnerium
2. Left metals – most metallic is lower left corner (Fr, Cs)
Non-metal – most non-metallic is He, Ne
Semiconductors(metalloids) - B, Si, Ge, As,Se, Sb,Te
4. At room temp. 20C, there are 2 liquids
5. A = period, B= Atomic Number, C= Atoic mass, D= symbol, E= name,
F = Group, G= … H = combining capacity
6. a.….are man made
b. Atomic no. 110 and up
7. period = row
8. electron shells = orbitals
9. largest are lowest on the P.T and highest in A.N.
10. column = group
11. Alkali Metals, Alkaline Earth, Halogens, Noble Gases, Transition Metals
12. IUPAC – groups 1 -18
American – Groups I, II, III, A,B
13. Similar Families have the same electrons in outer shell
Same shape of orbital
Different atomic numbers and mass
14. Elements 104 -109 named in honour of scientists
15. Hydrogen in two places
Not the same number of elements in each period (row).
Different number of sig.figs.
Sometimes place of AM and AN is reversed
Sometime combining capacity is included.
16. Wasn’t physical room to make the PT that wide
The two rows show the “f” orbitals filled.
17. The shape, the atomic numbers (order), the symbols,