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Atomic Theory & Periodic Table

15 Questions  I  By Mhagerty
Atomic Theory & Periodic Table
This quiz covers the atomic theory including its history as well as how to use the periodic table to calculate #s of subatomic particles.  

  
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1.  Scandium's atomic number is 21 and its atomic mass is 45.  It must have _____ protons, _____ neutrons, and _____ electrons. (list all 3 numbers in a row with 1 space in between each).
2.  It is possible to predict the exact speed and location of an electron. 
A.
B.
3.  __________________________ is the scientist who has an "Uncertainty Principle" named after him, because he proposed that it is impossible to determine both the exact velocity and location of an electron. 
4.  Neutrons can be found in an atom's ____________________. 
5.  Chlorine's atomic number is 17 and its atomic mass is 35.  It must have ______ protons __________ neutrons and _______ electrons. (list all 3 numbers in a row with 1 space in between each). 
6.  Number of protons is always equal to the number of ___________________ in an uncharged atom (check ALL that are true). 
A.
B.
C.
D.
7.  How many electrons can fit into any electron shell/orbital EXCEPT the first? 
A.
B.
C.
D.
E.
8.  _______________________ is the scientist who thought that atoms were "tiny, indestructable spheres" according to our video. 
9.  ____________________ can be found rotating in circular orbits outside an atom's nucleus. 
10.  _____________________ is the scientist who first coined the term 'nucleus' after his famous experiment shooting small particles at a sheet of gold foil. 
11.  _____________________ is the scientist who originally proposed that electrons move in 'orbits' around the nucleus. 
12.  How many electrons can fit in the FIRST electron shell/orbital? 
A.
B.
C.
D.
E.
13.  The only subatomic particle that is NOT always equal to at atom's atomic number is ____________________. 
14.  Protons can be found in at atom's ___________________. 
15.  ___________________ is the scientist who came up with the "Plum Pudding Model" to describe atomic structure. 
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