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Atoms 2024 Questions and Answers 100% Solved
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Exam of 2 pages for the course Atom at Atom (Atoms 2024)
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Atoms 2024What were the "stages" that the atom went through before it became the current
Electron Cloud Model? - answer Small spheres and pointy spheres (Democritus), The 4
elements (Aristotle), sphere with holes (Dalton), a sphere with negative and positive
charges spread throughout (Thomson), Moving particles around a nucleus (Rutherford),
Orbiting electrons with a negative charge and a nucleus with a positive charge (Bohr),
and finally the most recent model.
Protons - answer Positive Charge, same as the Atomic Number, if this is changed then
the entire element is changed, you can find the number of neutrons with this part of the
atom, and it is in the nucleus.
Electrons - answer Negative Charge, when neutral it is the same number as the amount
of protons, you can add as many of these as you want to an atom, but it will never
change the element, and it orbits around the nucleus, and it has to do with ions.
Neutrons - answer Neutral Charge, it could possibly determine if the atom is stable or
unstable, has to do with isotopes, it is in the nucleus, you can find it by taking the mass
number subtract the number of protons.
Mass Number - answerWhen you round the Atomic Mass to the nearest whole number.
Atomic Mass - answerThe amount of mass that the element has.
Atomic Number - answerHow many protons are in the element.
Electron Configuration - answerThe amount of electrons on each ring.
Isotope - answerAtoms of the same element with a different number of neutrons than
"normal".
Ion - answerAtoms that have lost or gained electrons and are now charged (different
number of electrons).
Rule #1 : Making the Center of the Atom Stable - answerBy putting the correct amount
of protons and neutrons in the center, and you cannot have more than 2
protons/neutrons than the other if you want it to be stable.
Rule #2: Determines the Name of the Element - answerThe number of protons
determines the name of the element.
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