Editing Answers To 2022-2023 Review Homework For Electron Configurations, Atomic Mass And Periodic Table
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Here are answers to [[2022-2023 Review Homework for Electron Configurations, Atomic Mass and Periodic Table]]<br> <br> 1) Fill completely with electrons the first subenergy (closest to nucleus therefore least amount of energy those electrons have)<br> <br> 2) Electrons. The way we says it is maximum 2 electrons in each orbital.<br> <br> 3) Electrons are filled into each orbitals (also called degenerate) before any orbital can have two electrons in it.<br> <br> 4) 3 subenergy levels ("s", "p", and "d") subenergy level. <br> 5) There are 5 "d" orbitals in each "d" subenergy level<br> <br> 6) Since there are two different types of subenergy levels, s brings 2 electrons and p orbital brings 6 for a total of 8electrons.<br> <br> 7) No since in third energy level there are 3 different subenergy levels (s, p, d) therefore<br> <br> 8) atoms of the same element different by mass (# of mass). Carbon-13, C-13, <sup>13</sup><sub>6</sub>C.<br> 9) #n= Mass number - Atomic number <br> 10) Atomic Number<br> <br> 11) Electron in the highest energy level. Column column L to R not including "d" & "f" blocks.<br> <br> <br> <u>Part II</u><br> 1) ( As 33e<sup>-</sup>) 1s<sup>2</sup> 2s<sup>2</sup> 2p<sup>6</sup> 3s<sup>2</sup> 3p<sup>6</sup> 4s<sup>2</sup> 3d<sup>10</sup> 4p<sup>3</sup> [5 valence electron]<br> <br> 2) (Bi 83e<sup>-</sup>) 1s<sup>2</sup> 2s<sup>2</sup> 2p<sup>6</sup> 3s<sup>2</sup> 3p<sup>6</sup> 4s<sup>2</sup> 3d<sup>10</sup> 4p<sup>6</sup> 5s<sup>2</sup> 4d<sup>10</sup> 5p<sup>6</sup> 6s<sup>2</sup> 4f<sup>14</sup> 5d<sup>10</sup> 6p<sup>3</sup> [5 valence electron]<br> <br> 3) (Cs 55e<sup>-</sup>) 1s<sup>2</sup> 2s<sup>2</sup> 2p<sup>6</sup> 3s<sup>2</sup> 3p<sup>6</sup> 4s<sup>2</sup> 3d<sup>10</sup> 4p<sup>6</sup> 5s<sup>2</sup> 4d<sup>10</sup> 5p<sup>6</sup> 6s<sup>1</sup> [1 valence electron]<br> <br> <u>Part II (2nd one)</u><br> Note: p<sup>+</sup> - proton, e<sup>-</sup> - electron, n<sup>0</sup> - neutrons<br> <br> a) Ca-42 (Calcium-42), 20p<sup>+</sup>, 20e<sup>-</sup>, 22n<sup>0</sup><br> <br> b) C-13 (Carbon-13), 6p<sup>+</sup>, 6e<sup>-</sup>, 7n<sup>0</sup><br> <br> c) U-238 (Uranium-238), 92p<sup>+</sup>, 92e<sup>-</sup>, 146n<sup>0</sup><br> <br> <u>Part III</u><br> See Atomic mass table for actual atomic mass.
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