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Chemistry Atom Test Review 2014
Development of the atomic Model:
Scientist
Democritus
Contribution
Model
John Dalton
JJ Thomson
Earnest Rutherford
Neils Bohr
Chadwick
Schrodinger
What are the three subatomic particles and their charges?
1. How many protons do the following atoms have?
Ca Al K Ag1+ Ne
2. How many electrons do the following atoms have? Li F1- Ar H Au2+
3. How many neutrons do the following elements have? Be As He 238U Flourine-20
Chemistry Atom Test Review 2014
4.
5.
6.
7.
Which particles are found in the nucleus of the atom?
What does the principal quantum number give us?
How many p orbitals are there in one energy level?
How many electrons does each orbital hold? Why?
Aufbau Principal
Pauli’s Exclusion Principal
Hunds Rule
8. Write out Dalton’s Modern Theory of the Atom: ( Which still hold true today which have
changed?)
9.
10. Write out the electron configuration of the following Atoms: Li Mg Al Cu
11. What is amu?
12. What are isotopes?
13. What are the maximum number of orbitals of each type of orbital in each level?
14.
Element
23
X is 10%
22
X is 40% and 20X is 50% abundant calculate the average atomic mass.
15. Which electron configurations are most stable?
16. Write out the Noble gas configuration or shorthand configuration of the following: S, Cu and Sr
17. Why is Silver an Exception to the normal way of writing out Electron Configurations? Write out
the noble gas configuration of Silver:
18. Compare and Contrast Ions and Isotopes, give an example of each:
19. In nature we find the following abundances of Sodium: 81% is Sodium -23, 8 % is Sodium -22
and 11% is Sodium -24, Calculate the average mass of Sodium found in Nature:
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