Answer:
atoms can't be created nor can be destroyed.
atoms cat be broken down into smaller pieces.
all atoms of an element are identical.
chemical reactions cause atoms to be rearranged.
An introduction that states the thesis
A body that has one argument per paragraph and points of evidence.
And a conclusion that restates the thesis.
Answer:
sorry I don't understand hindy so I can't anwser, if I understood I could've helped but I can't