The element having valency of 1 is ~
No He believed tiny particles were invisible and couldn't be changed....So No The person that believed in this was Dalton .
Answer: crest I don’t really know how to explain it but yea it’s crest
Answer:
First, you have to analyze your problem or question. After you research and collect data about your topic, create a hypothesis to test to try and find the answer. After testing your hypothesis, come up with a conclusion based on the results.
