Atoms of the same element are identical, but atoms of one element are different from atoms of another element. Based on the hydrogen atom first to state that electrons travel about the nucleus in fixed energy levels (orbits) photon emission was related. The minimum amount of energy that can be lost or gained by an atom. The mass and other properties of all atoms of an element are the same, but the atoms of one element differ from all other elements. 1) Each element is composed of tiny indestructible particles called atoms (this is not true, atoms can be destroyed) 2) All atoms of a given element have the same mass ad other properties that distinguish them from the atoms of other elements (not true, of neutrons can change that form different isotopes) 3) Atoms combine in. Form of energy released from the movement of electrons has zero mass and carries a quantum of energy. All elements are composed of tiny, indivisible parts called atoms. Daltons atomic theory believes that: Each chemical element is made up of atoms, which are very small particles that are indivisible and are not seen by the naked eye.Atoms can neither be created nor destroyed. John Dalton (1766-1844) first experiment based theory. ![]() \)) More important, by measuring the extent of the deflection of the cathode rays in magnetic or electric fields of various strengths, Thomson was able to calculate the mass-to-charge ratio of the particles. believed atoms were invisible, indivisible, and indestructible. Atomic theory is the scientific theory that matter is composed of particles called atoms.
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