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1. Moseley’s periodic table is based on atomic mass.
 
 
2. Ionic radius increases across the period from left to right.
 
 
3. All ores are minerals; but all minerals cannot be called as ores.
 
 
4. Al wires are used as electric cables due to their silvery white colour.
 
 
5. An alloy is a heterogenous mixture of metals.