Answer
396.9k+ views
Hint: Ionisation energy is straightforward terms may be defined as a measurement of the problem in removal of an electron from an atom or ion or the tendency of an atom or ion to give up an electron. The lack of electrons normally happens when it is in a ground state of the chemical species.
Explanation:
Ionization energy is the amount of energy that an isolated, gaseous atom in the ground state should absorb to discharge an electron, resulting in a cation.
When thinking about a first of all neutral atom, expelling the primary electron would require much less energy than expelling the second one, the second one would require much less energy than the third, and so on. Each successive electron calls for extra energy to be released in reaction. This is due to the fact after the primary electron is lost, the net charge of the atom turns into positive, and the negative forces of an electron might be attracted to the positive charge of the newly formed ion. The extra electrons which are lost, the more positive this ion might be, the more difficult it is to split the electrons from the atom.
Complete step by step solution:
Since we know that,
\[\dfrac{{I{E_{L{i^{2 + }}}}}}{{I{E_{H{e^ + }}}}} = {\left( {\dfrac{{{Z_{L{i^{2 + }}}}}}{{{Z_{H{e^ + }}}}}} \right)^2} = \dfrac{9}{4}\]
\[I{E_{L{i^{2 + }}}} = \dfrac{9}{4} \times I{E_{H{e^ + }}}\]
\[I{E_{L{i^{2 + }}}} = \dfrac{9}{4} \times 19.6 \times {10^{ - 18}}\]
\[I{E_{L{i^{2 + }}}} = - 4.41 \times {10^{ - 17}}J/atom\]
Therefore, the correct answer is option B. \[I{E_{L{i^{2 + }}}} = - 4.41 \times {10^{ - 17}}J/atom\]
Note:
Ionisation energies are dependent on the atomic radius. Since, going from right side to left side on the periodic table, the atomic radius has an increase, and the ionization energy also increases from left to right in the periodic table and up side the groups.
Explanation:
Ionization energy is the amount of energy that an isolated, gaseous atom in the ground state should absorb to discharge an electron, resulting in a cation.
When thinking about a first of all neutral atom, expelling the primary electron would require much less energy than expelling the second one, the second one would require much less energy than the third, and so on. Each successive electron calls for extra energy to be released in reaction. This is due to the fact after the primary electron is lost, the net charge of the atom turns into positive, and the negative forces of an electron might be attracted to the positive charge of the newly formed ion. The extra electrons which are lost, the more positive this ion might be, the more difficult it is to split the electrons from the atom.
Complete step by step solution:
Since we know that,
\[\dfrac{{I{E_{L{i^{2 + }}}}}}{{I{E_{H{e^ + }}}}} = {\left( {\dfrac{{{Z_{L{i^{2 + }}}}}}{{{Z_{H{e^ + }}}}}} \right)^2} = \dfrac{9}{4}\]
\[I{E_{L{i^{2 + }}}} = \dfrac{9}{4} \times I{E_{H{e^ + }}}\]
\[I{E_{L{i^{2 + }}}} = \dfrac{9}{4} \times 19.6 \times {10^{ - 18}}\]
\[I{E_{L{i^{2 + }}}} = - 4.41 \times {10^{ - 17}}J/atom\]
Therefore, the correct answer is option B. \[I{E_{L{i^{2 + }}}} = - 4.41 \times {10^{ - 17}}J/atom\]
Note:
Ionisation energies are dependent on the atomic radius. Since, going from right side to left side on the periodic table, the atomic radius has an increase, and the ionization energy also increases from left to right in the periodic table and up side the groups.
Recently Updated Pages
How many sigma and pi bonds are present in HCequiv class 11 chemistry CBSE
![arrow-right](/cdn/images/seo-templates/arrow-right.png)
Why Are Noble Gases NonReactive class 11 chemistry CBSE
![arrow-right](/cdn/images/seo-templates/arrow-right.png)
Let X and Y be the sets of all positive divisors of class 11 maths CBSE
![arrow-right](/cdn/images/seo-templates/arrow-right.png)
Let x and y be 2 real numbers which satisfy the equations class 11 maths CBSE
![arrow-right](/cdn/images/seo-templates/arrow-right.png)
Let x 4log 2sqrt 9k 1 + 7 and y dfrac132log 2sqrt5 class 11 maths CBSE
![arrow-right](/cdn/images/seo-templates/arrow-right.png)
Let x22ax+b20 and x22bx+a20 be two equations Then the class 11 maths CBSE
![arrow-right](/cdn/images/seo-templates/arrow-right.png)
Trending doubts
Fill the blanks with the suitable prepositions 1 The class 9 english CBSE
![arrow-right](/cdn/images/seo-templates/arrow-right.png)
At which age domestication of animals started A Neolithic class 11 social science CBSE
![arrow-right](/cdn/images/seo-templates/arrow-right.png)
Which are the Top 10 Largest Countries of the World?
![arrow-right](/cdn/images/seo-templates/arrow-right.png)
Give 10 examples for herbs , shrubs , climbers , creepers
![arrow-right](/cdn/images/seo-templates/arrow-right.png)
Difference between Prokaryotic cell and Eukaryotic class 11 biology CBSE
![arrow-right](/cdn/images/seo-templates/arrow-right.png)
Difference Between Plant Cell and Animal Cell
![arrow-right](/cdn/images/seo-templates/arrow-right.png)
Write a letter to the principal requesting him to grant class 10 english CBSE
![arrow-right](/cdn/images/seo-templates/arrow-right.png)
Change the following sentences into negative and interrogative class 10 english CBSE
![arrow-right](/cdn/images/seo-templates/arrow-right.png)
Fill in the blanks A 1 lakh ten thousand B 1 million class 9 maths CBSE
![arrow-right](/cdn/images/seo-templates/arrow-right.png)