The word atomos means "indivisible." The ancient Greeks thought that matter was made of corpuscle that can not it is in divided, so they used the hatchet atomos to describe that home of matter"s particles.

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Dalton"s theory proclaimed that:• all facets were make of atoms • every atoms within an element had the very same mass• atoms of different aspects had different masses• compounds included atoms of more than one element• atoms of various elements always combined in the same method in the same compound
Examine the false statement.J.J. Thomson"s cathode-ray pipe experiments led the to develop the plum-pudding model, which declared that each atom had actually positively charged particles spread throughout the negatively fee matter.Reword the statement so that is true.
J.J. Thomson"s cathode-ray tube experiments led him to develop the plum-pudding model, which proclaimed that every atom had actually negatively fee particles spread throughout its positively fee matter.
Examine the mistakenly arranged statements about Ernest Rutherford"s gold foil experiment. More alpha particles to be deflected than he expected. Rutherford proposed that an atom"s positive charge was located in one place in the atom. This proposal come from the plum-pudding model"s idea that an atom"s positive charge is spread out throughout it. Rutherford perform his gold foil experiment. Rutherford suggest that most of the alpha particles would pass through the gold foil. Rutherford made decision to do an experiment that connected shooting alpha particles at yellow foil. This proposal was based upon the concept of a positively fee nucleus.Place the statements in the exactly chronological order.
1. Rutherford determined to perform an experiment that involved shooting alpha particles at yellow foil.2. Rutherford propose that many of the alpha particles would pass v the gold foil.3. This proposal came from the plum-pudding model"s idea that an atom"s positive charge is spread throughout it.4. Rutherford performed his yellow foil experiment.5. More alpha particles to be deflected than he expected.6. Rutherford proposed that an atom"s positive charge was situated in one location in the atom.7. This proposal was based upon the concept of a positively fee nucleus.
Bohr"s version proposed the electrons move approximately the cell nucleus in orbits, favor planets orbiting the sun.
Describe just how electrons communicate with photons when they move up to one more energy level and down to one more energy level.
Electrons absorb a photon in order to relocate up to a higher energy level. Electrons relax a photon in stimulate to relocate down to a lower energy level.
An element"s atom fingerprint describes the distinctive pattern the light the each atom emits or absorbs. The fact that each element"s atomic fingerprint is distinctive is crucial because facets can be determined by this feature.

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An atomic orbital is a an ar of room around the nucleus where electrons room most likely to be found.
s - 2 electrons (There is one type of s orbital, i beg your pardon holds 2 electrons.)p - 6 electron (There space three subtypes of p orbitals, which each holds 2 electrons.) d - 10 electrons (There are five subtypes the d orbitals, which every holds 2 electrons.)
Which of the following scientists perform a yellow foil experiment the led the to suggest the visibility of the nucleus?
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Physics: Principles and ProblemsElliott, Haase, Harper, Herzog, Margaret Zorn, Nelson, Schuler, Zitzewitz
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