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How many shells according its electron configuration

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Reference no: EM131135768

1- According to the showed electron configuration, answer for:

1s2
2s2 2p6
3s2 3p6 3d10
4s2 4p6 4,110
5s2 5p2

a- How many shells...?
b- How many orbitals...?
c- What is the Atomic Number of this element...?
d- How many electrons...?
e- How many electrons in the last shell...?

2- For element Ar, answer the following questions:
a- How many shells according its electron configuration?
b- How many electrons in the last shell?
c- How many neutrons in the nucleus?

3- What do you consider the main contribution in the description of atomic structure in the atomic model of Rutherford (Planetary model)? Please, argue your answer.

4- According to you, what do you consider the main contribution of this Course in your professional formation?

Reference no: EM131135768

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