Below are the physical properties of metals:

1. They exist in solid state.

2. The have high densities.

3. They are good conductors of heat and electricity.

4. The have the ability to be polished, to glow, sparkle and reflect light.

5. They can be bent, flattened and made into sheets called foils.

6. They can be drawn into wires.

7. Iron undergoes magnetism while most metals are poorly magnetized.

8. They typical have high melting point.

9. They generally have high boiling point.

10. With the exception of lithium, sodium and potassium, most metals are generally hard.

11. They have the ability to make sound when in contact with other objects or metals.

Please read details on the physical properties of metals here

John Dalton is an English chemist who brought clarity into the composition of matter and the basis for their chemical reactions.

Below are Dalton's Atomic Theory:

1. All matter consists of tiny indivisible particles called atoms.

2. Atoms of the same element are identical to each other in every aspect because they have the same shape and mass, while atoms of different elements are different in all respect.

3. Atoms are indestructible and can neither be created nor destroyed.

4. Atoms of different elements can combine with each other in simple whole number ratios to form compounds.

5. Atoms of the same element share similar physical and chemical properties. They can also combine in more than one ratio to form two or more compounds.

Meanwhile, understand that the above theories of John Dalton had been modified.

Please read on Dalton's atomic theory and its modifications here