Question

True or False: (If false give the correct statement) 

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. Aluminium wires are used as electric cables due to their silvery white colour. 

5. An alloy is a heterogenous mixture of metals.

Answer 1

1. False – Moseley’s periodic table is based on atomic number. 

2. True 

3. True 

4. False – Aluminium wires are used as electric cables because it is a good conductor of heat and electricity. 

5. False – An alloy is an homogeneous mixture of metals.