Day 11: Oxygen, Dalton's Atomic Theory, and Writing Chemical Formulas

1. Elements are made of tiny particles called atoms.

I believe that this theory is true.  I believe this because atoms make up everything, including elements.

    2.  All atoms of a given element are identical.

I do not agree with this because isotopes of an atom have different weights.

    3.  Atoms cannot be split, created, or destroyed.


I do agree with this because it refers to the law of conservation of matter.


    4.  Atoms of different elements combine in simple whole-number ratios to form compounds.


I do agree with this because it refers to the law of definite proportions.


    5.  A chemical reaction is a rearrangement of atoms.


Yes, I agree with this because that is part of the definition of a chemical reaction.


Resources:
"John Dalton"
"Dalton's Atomic Theory"