Atomic Structure Review - Mrs Wernau's Pre-AP Chemistry：原子结构评审夫人韦尔瑙预AP化学

1、.Atomic Structure ReviewName: _Atomic History Questions: Know all scientists, their experiments, and the outcomes of the experiments1. The _ experiment led to the discovery of the electron. _ was the scientist involved with this experiment.2. Millikans _ experiment found the _ of an electron.3. _ pr

2、oposed a model of an atom referred to as the “Plum Pudding” model.4. Rutherfords experiment was the _ experiment. It proved the existence of a central, positively charged region called the _ and proved that most of an atom is _.5. The _ model of the atom is based on a planetary design.6. What were t

3、he main points of Daltons atomic theory?7. What were the 2 points that have since been revised?8. Why are atoms considered to be neutral?9. List the 3 subatomic particles and state their charges:10. Which of the subatomic particles is the smallest?11. Which two particles are about equal in size?12.

4、Name 3 characteristics of the nucleus?13. What is most of an atoms mass due to?14. What accounts for the size (volume) of an atom?15. Isotopes vary in the number of _ they have.16. Isotopes also vary in their atomic _.17. Write the hyphen notation of the three isotopes of hydrogen:18. The most commo

5、n form of hydrogen is hydrogen - _ which is also called _.19. What subatomic particle can always be predicted, using the periodic table?20. What number do you look at on the periodic table, to determine the number of protons?21. Protons + Neutrons = _22. Mass Number Protons = _23. Complete the Table

6、. Use your periodic table to help.IsotopeMass NumberProtonsNeutronsElectrons1H+11H-2Carbon-13C-1416O818O-28Cesium-13363Cu29U-234U-23824. A student looked up the naturally occurring isotopes of bromine and found the following information:50.54% of the naturally occurring isotopes of bromine have an a

7、tomic mass of 78.92 amu, while 49.46% of the naturally occurring isotopes of bromine have an atomic mass of 80.92 amu. Calculate the average atomic mass of bromine:25. Using the following data, calculate the average atomic mass of magnesium (give your answer to the nearest hundredths place):Isotope:

8、 Mg-24 Percent abundance:78.70%Isotope: Mg-25Percent abundance:11.17%Isotope: Mg-26Percent abundance:10.13%Mole Problems = 26. Find the number of atoms of phosphorus in 2.44 moles of phosphorus:27. What is the mass of 1.38 moles of cobalt?28. How many moles of nickel is 4.88 x 1025 atoms of nickel?29. How many atoms are in 850. g of selenium?30. If a particular compound is composed of elements A and B, the ratio of the mass of B to the massof A will always be the same. This is a statement of the law of _.31. If two or more compounds are composed of el