Download Unit(1:(Atomic(Structure(Review(Guide

Unit%1:%Atomic%Structure%Review%Guide%
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1. In%each%box,%write%the%name%of%the%scientist(s)%associated%with%the%statement.%Choose%from%
among%the%following%scientists.%%
Democritus,%Thomson,%Bohr,%Rutherford,%Dalton,%Schrodinger%&%Heisenberg%
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There%are%small,%negatively%charged%particles%
Electron%paths%cannot%be%predicted.%
inside%the%atom.%
There%is%a%small,%dense,%positively%charged%
nucleus.%
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Most%of%an%atom’s%mass%is%in%the%nucleus%
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Electrons%jump%between%levels%from%path%to%
path.%
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He%conducted%the%cathodeKray%tube%experiment.%
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Electrons%travel%in%definite%paths.%
Electrons%move%in%empty%space%in%the%atom.%
His%theory%of%atomic%structure%led%to%the%“plum%
pudding”%model.%
Electrons%are%found%in%electron%clouds,%not%
paths.%
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Atoms%of%the%same%element%are%exactly%alike.%
Atoms%of%different%elements%are%different.%
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Atoms%contain%mostly%empty%space.%
Atoms%constantly%move.%
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Atoms%are%small,%hard%particles.%
He%conducted%the%gold%fail%experiment.%%
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2. Use%the%definitions%below%to%unscramble%the%vocabulary%words:%
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1%
Weighted%average%of%the%
MICTOA%SAMS%
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masses%of%all%naturally%
occurring%isotopes%
2%
The%building%blocks%of%
MOATS%
%
matter%
%
3%
Unifying%scientific%
RYTHOE%
%
explanation%supported%
by%testing%
4%
Positively%charged%
TORPNO%
%
particle%in%the%atom%
5%
Made%up%of%protons%and%
UCSELUN%
%
neutrons%
6%
Particle%in%the%atom%that%
TRONUNE%
%
has%no%charge%
7%
Atoms%with%the%same%
SOOTPIES%
%
number%of%protons%but%
different%numbers%of%
neutrons%
8%
Negatively%charge%
CLEENROT%
%
particles%in%the%atom%
%
%
%
%
%
%
%
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3. Fill%in%the%blanks%in%the%following%chart:%
%
Element'
Atomic'#'
Mass'#'
Protons'
Neutrons'
Electrons'
Copper%
29%
%
%
35%
%
Carbon%
%
12%
6%
%
%
Beryllium%
%
9%
%
5%
%
Oxygen%
%
%
%
8%
8%
Xenon%
54%
131%
%
%
%
%
4. Calculate%the%following%average%atomic%masses:%
a. What%is%the%average%atomic%mass%of%silicon%if%92.21%%of%its%atoms%have%a%mass%of%28;%4.7%%
have%a%mass%of%29;%and%3.09%%have%a%mass%of%30?%
b. Carbon%has%98.9%%if%its%atoms%as%carbonK12;%1.1%%us%carbonK13;%and%a%trace%amount%of%
carbonK14.%Calculate%carbon’s%average%mass.%
%
%
%
%
%
c. Chlorine%is%found%75.8%%as%chlorineK35%and%24.2%%as%chlorineK37.%Calculate%the%average%
atomic%mass.%
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%
%
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5. Explain%why%atoms%are%electrically%neutral.%____________________________________________________________%
_________________________________________________________________________________________________________________
_______________________________________________________________________________________________________________%
________________________________________________________________________________________________________________%
________________________________________________________________________________________________________________%
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6. Which%subatomic%particle%identifies%an%atom?%_________________________________________________________%
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7. Why%are%the%average%atomic%masses%on%the%periodic%table%NOT%whole%
numbers?_____________________________________________________________________________________________________%
_________________________________________________________________________________________________________________
_________________________________________________________________________________________________________________%
8. Write%the%complete%ground%state%electron%configurations%for%the%following:%
a. Lithium:%______________________________________________________________________________________________%
b. Oxygen:%%______________________________________________________________________________________________%
c. Calcium:%%______________________________________________________________________________________________%
d. Titanium:%_____________________________________________________________________________________________%
e. Rubidium:%____________________________________________________________________________________________%
f. Cadmium:%____________________________________________________________________________________________%
g. Polonium:%____________________________________________________________________________________________%
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9. Write%the%Noble%Gas%configurations%for%the%following:%
a. Iodine:%%_______________________________________________________________________________________________%
b. Iron:%__________________________________________________________________________________________________%
c. Zinc:%__________________________________________________________________________________________________%
d. Barium:%_______________________________________________________________________________________________%
e. Polonium:%____________________________________________________________________________________________%
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10. Write%the%Orbital%Notation%for%the%following:$
a. Lithium:%____________________________________________________________________________________________$
$
b. Titanium:%__________________________________________________________________________________________$
$
c. Iron:%_______________________________________________________________________________________________$
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11. %What%are%the%four%sections,%or%blocks,%of%the%periodic%table?%___________________________________________%
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12. What%does%each%block%represent?%________________________________________________________________________%
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13. Why%does%the%sNblock%span%two%groups%of%elements?%___________________________________________________%
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14. Why%does%the%pNblock%span%six%groups%of%elements?%%___________________________________________________%
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15. List%the%Aufbau’s%energy%order,%starting%at%the%lowest%energy.%
_________________________________________________________________________________________________________________
_________________________________________________________________________________________________________________%
16. What%is%the%shape%of%the%“s”%orbital?%“p”%orbital?%_______________________________________________________%
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Topics'to'study:'
•
People%that%discovered%different%parts%of%the%atom%
•
Dalton’s%Atomic%Theory%and%the%Modern%Atomic%Theory%
•
Calculating%Protons,%Neutrons,%Electrons,%and%Mass%
•
Calculating%the%Average%Atomic%Mass%
•
Writing%Electron%Configurations%
•
Writing%Noble%Gas%Notations%
•
Writing%Orbital%Notations%
•
Though%you%may%know%how%to%do%each%of%the%calculations%and%configurations%listed%above,%you%still%
need%to%study%the%information%that%is%found%in%your%notes.%%