Which of the following is NOT part of Dalton's Atomic Theory? Atoms combine in simple, whole-number ratios to form compounds. All atoms of a given element have the same mass and other properties that distinguish them from the atoms of other elements. Most of the atom's mass and all of its positive charge is contained in a small core called the nucleus. Each element is composed of tiny indestructible particles called atoms. All of the above are part of the atomic theory.

Most of the atom's mass and all of its positive charge is contained in a small core called the nucleus.

Explanation:

Based on the weighted laws of Lavoisier and Proust, scientist John Dalton, around the year 1808, elaborated his theory on matter, known as Dalton's atomic theory. The main conclusions of Dalton's atomic model were:

Matter is made up of extremely small particles called atoms; Atoms are massive and indivisible spheres; Atoms with the same properties constitute a chemical element; Different elements are made up of atoms with different properties. Chemical reactions are rearrangements, union and separation of atoms.

Dalton believed that atoms were massive and indivisible spherical, indicating that he did not believe atoms had nuclei, protons, electrons, and electrosphere. For this reason, we can conclude that among the options given in the above question, one that does not present a Donton conclusion about the atom is " Most of the atom's mass and all of its positive charge is contained in a small core called the nucleus."