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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

 

3

 

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,