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electron config and quantum numbers

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									      PhysChem Worksheet (Electron config & electron descriptions)

Question one:
Write the electron configuration for the following ions
Na+
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Mg2+
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Ca2+
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Al3+
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Cr3+
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Fe3+
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Question 2
Define the following


Atomic orbital:
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Aufbau Prinzipal:
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Ground State:
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Excited State
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Question 3:
What do each of the letter in the following equation stand for
E2 - E1 =hf
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Question 4:
How can an electron be promoted to an excited state?
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Can an electron stay in the excited state?Why?
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What does the atom emit as an electron falls from an excited state to its ground state?
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What colour would the flame be if the following metals were put under a flame
Sodium:____________
Potassium:_________
Calcium:___________
Lithium:___________
Barium:____________


Question 5
Describe, using quantum numbers the outmost electron in an atom of the following
elements:


Al:
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O:
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Cl:
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Br
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                      Arithmetic Revision Worksheet

    Question 1
       1. 4/9 of a prize fund is 220. How much is the total prize fund?
       2. 2/5 of a weight is 84g. What is the total weight?

Question 2
   Express metrics into fractions
   ⁃    Express 650mm as a fraction of a meter
   ⁃    Express 450m as a fraction of a kilometer
   ⁃    Express 650g as a fraction of a kilogram

Question 3
   If a train left the station in Dublin at 09:05 and arrived in Cork at 11:50.
   The distance from Dublin to Cork is 250 km. What speed was the train
   traveling at?

Question 4
   Mark earns 5840 euro in a month and has tax credits of 240 euro for
   that month. The standard cut of point is 2950 euro and the standard
   rate and the higher rate is 20% and 41% respectively.
    Calculate his take home pay for the month

Question 5
   A woman paid 6600 euro income tax for a year. Her tax credits
   amounted to 4600 and her standard cut off point was 28,000 euro. The
   standard rate of tax was 20% and the higher rate was 40%.
    Calculate the woman’s gross income for the year.

								
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