Which of the following was not among democritus’s ideas? group of answer choices
atoms are indestructible.
atoms are indivisible.
atoms retain their identity in a chemical reaction.
matter consists of tiny particles called atoms.

Atoms retain their identity in a chemical reaction.

Explanation:

According to Democritus, matter consists of tiny particles called atoms which are indivisible and indestructible. However, investigation into the changes that occur In chemical reactions had not yet commenced in the time of Democritus hence it isn't originally part of his ideas.

h let me think

it's c. elements are placed in rows based on how may valencies electrons have.