In the long form of the periodic table, the valence shell electronic c...
For finding the period and the group of an element whose valence orbital configuration is given-
(i) Check the principal 'n' value. The 'n' value gives the period in which the element is present.
Here 'n' is 5.
Therefore, the element is present in the 5th period.
(ii) Check the number of electrons in the valence shell.
No. of electrons in the valence shell = 4 + 2 = 6
Since the number of electrons is greater than 2, we must add 10 to get the group in which this element in present.
So, 10 + 6 = 16
Therefore, this element is present in the 16th group.
In the long form of the periodic table, the valence shell electronic c...
To determine the element corresponding to the given valence shell electronic configuration of 5s2 5p4, we need to analyze the position of the element in the periodic table based on its valence shell configuration.
The valence shell electronic configuration of an element represents the arrangement of electrons in the outermost energy level, also known as the valence shell. The valence electrons are the electrons present in the outermost shell and are responsible for the chemical behavior of the element.
In the given configuration, we have 2 electrons in the 5s orbital and 4 electrons in the 5p orbital. This gives us a total of 6 valence electrons.
Now, let's analyze the possible options and determine which one corresponds to the given electronic configuration:
a) Group 16 and period 6: In this group, elements have a valence shell electronic configuration of ns2 np4. However, the given configuration is 5s2 5p4, which does not match. So, option a) is incorrect.
b) Group 17 and period 5: In this group, elements have a valence shell electronic configuration of ns2 np5. Again, the given configuration is 5s2 5p4, which does not match. Therefore, option b) is incorrect.
c) Group 16 and period 5: In this group, elements have a valence shell electronic configuration of ns2 np4. The given configuration of 5s2 5p4 matches this pattern, indicating that the element belongs to group 16 and period 5. Therefore, option c) is correct.
d) Group 17 and period 6: In this group, elements have a valence shell electronic configuration of ns2 np5. The given configuration of 5s2 5p4 does not match this pattern. Thus, option d) is incorrect.
Therefore, the correct answer is option c) Group 16 and period 5, which corresponds to the valence shell electronic configuration of 5s2 5p4.
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