Editing Answer To 2021-2022 Honors Chem328 Review HW For Atomic Structure - Greeks Thru Rutherford
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Here are answers to [[2021-2022 Honors Chem328 Review HW for Atomic Structure - Greeks thru Rutherford]].<br> <br> <br> 1a) Democritus 1b) atomos<br> <br> 2ai) Atoms are indivisible (smallest particle)<br> 2aii) Atoms of the same element are the same including mass<br> 2aiii) Atoms of different elements are different including mass<br> 2aiv) Atoms combine in simple whole number ratios (those group particles we call Compounds)<br> <br> <br> 2bi) Incorrect, have subatomic particles (protons, neutrons, electrons)<br> 2bii) Incorrect, have isotopes<br> 2biii) FOR OUR CLASS, CORRECT<br> 2biv) Correct<br> <br> <br> 3a) Total number of atoms are conserved (thru chemical reaction and physical process)<br> 3b) Each individual type of atom is conserved (thru chemical reaction and physical process)<br> <br> <br> 4ai) Discovered electron. He exposed a magnet to what looked like a beam of "green light" coming out of a piece of metal (i.e. atom of a metal). Beam deflected away from the negative side of magnet meaning "green light" was actually particles that were negatively charged.<br> 4aii) There only one type of electron.<br> <br> 4b) Plum Pudding atom model - Atom is made up of positive sphere with electron distributed throughout.<br> <br> 5) Chadwick discovered the neutron (circa 1940s)<br> <br> 6) Nucleus has three characteristics. They were determined from observing a"smaller than atom" positive particles being "shot" at a gold atom (gold leaf) to see where they went after going thru atom. Here is what was found out (three characteristics of nucleus):<br> a) Massive (most of mass) - A very few bounce particles bounced back <br> b) Small volume (atom mostly empty space) - most particle "passed straight thru"<br> c) Positively charge - some particle deflected a little<br> <br> <br> 7) Nuclear model - atom is made up of nucleus and rest of the volume of the atom is mostly empty space where electrons are located.<br> <br> 8) Electrons and how they move/located outside of nucleus in empty space/volume of atom<br> <br>
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