1.3.1 Comparison with Group 1 elements What are the physical differences between group 1 & transition elements? (3) Group 1 Transition metals Low melting point Low density Soft High melting point High density Strong, hard What are the chemical differences between...
1.2.1 The periodic table Arrangement – order of increasing atomic no Elements with similar properties are in columns, aka groups Why is the table called periodic table? Similar properties occur at regular intervals Why are the elements in the same group? Same no of e-...
1.1.1 Atoms, elements and compounds Atom – smallest part of an element that can exist Element • Substance made of 1 type of atom • Cannot be broken down chemically into simpler substance Compound • 2 or more elements chemically bonded in fixed properties • Form /...