Answer:

1. D. Democritus

• Democritus was a Greek philosopher who was the first person to use the term atom (atomos: meaning indivisible).

2.

3. D. Thomson

• Summary. J.J. Thomson's experiments with cathode ray tubes showed that all atoms contain tiny negatively charged subatomic particles or electrons. Thomson proposed the plum pudding model of the atom, which had negatively-charged electrons embedded within a positively-charged "soup."

Explanation:

sorry po wala ang naumber 2 kasi kulang po yung A,B,C,D

pero ikaw nalang po mag hanap ng answer dito;

2. Dalton hypothesized that the law of conservation of mass and the law of definite proportions could be explained using the idea of atoms. He proposed that all matter is made of tiny indivisible particles called atoms, which he imagined as "solid, massy, hard, impenetrable, movable particle(s)".

number 2 poyan d kolang po alam kasi kulang sorry