Dalton is refered toas the father of modern atomic theory why?

John Dalton now and then was referred to as the daddy of contemporary atomic theory. In 1803, he speculated that every one atoms of a given element are identical in size and mass. Dalton; chemist reasoned that elements were composed of smaller atoms. This result in the atomic theory of matter.

John Dalton was known as the father of modern atomic theory, because he stated that all atoms of a given element are identical in size and mass. John Dalton reasoned that elements were composed of smaller atoms. This lead to the atomic theory of matter.

Explanation:

each  column  of the  table  is called a group. elements in a group share similar properties. groups are  read  from  top  to  bottom. metal. metalloid. nonmetal. solid. liquid. gas. fe. hg. o.  2. 3. 4. 5. 6. 7. 8. 9.  2. beryllium. 9.012. 4.  sodium. 22.990.  11. 3.  magnesium. 24.305.  12.  potassium. 39.098.  19. 4.  calcium. 40.078.  20. i guess  i  

oxygen, selenium, tellurium, and polonium.

they're all from the same group as sulfur (group 16).