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Chem Chapter 5
| Question | Answer |
|---|---|
| physical and chemical property of the elements are periodic functions of their atomic numbers | periodic law |
| atomic mass | mendeleev |
| atomic number | Mosley |
| periodic | a regular repeating pattern |
| synthesized | man made |
| silvery and soft, never found in nature, combined vigorously with non metals | alkali metals |
| harder, denser, stronger then alkali metals , less reactive then alkali metals never found as free elements | alkaline metals |
| metals with metallic properties. good conductors of electricity less reactive then groups 1 or 2. have variable oxidation numbers. | d block elements/ transition metals |
| verys greatly , includes non metals except H and He, and the zix metaloids. | P block elements/ main-group elements |