Question

The energy required to remove the electron from a singly ionized helium atom is 2.2 times the energy required to remove an electron from helium atom. The total energy required to ionize the helium atom completely is :

Answer 1

⭐⭐⭐ Hey mate!!!⭐⭐⭐

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⚡⚡ Energy required to remove an electron from singly ionised helium atom will be

En= (13.6)×2^2

En= 54.4eV

Now ,

⚡Given energy required to remove electron from singly ionized helium atom is 2.2 times of the energy required to remove electron from helium atom..

So,

E He = 54.4/2.2

E He = 24.72

⚡total energy required will be energy required to remove electron from helium atom + energy required to remove electron from singly ionised helium atom.

⚡⚡E total = 54.4 + 24.72

= 79.12eV

Hope it will help you...

#phoenix⭐

Answer 2

Answer:The total energy required to ionize the helium atom completely is 79.12 eV

Explanation:

$He\rightarrow He^++1e^-,Delta H=E_1$

Energy required to remove an electron from helium atom = $E_1$

$He^+\rightarrow He^{2+}+1e^-,Delta H=E_2$

Energy require to remove an electron from singly ionized helium atom =$E_2$

Since in hydrogen atom and singly ionized helium ion has single electron , the energy required to remove an electron is 13.6 eV

For hydrogen =$E=13.6 Z^2$, Z=1 we get 13.6 eV.

For helium ion = $E_2=13.6\times (2)^2=54.4 eV$

$E_2=54.4 eV$

$E_2=2.2\times E_1$

$E_1=\frac{54.4 eV}{2.2}=24.72 eV$

The total energy required to ionize the helium atom completely is :

$E_1+E_2=24.72 eV+54.4eV=79.12 eV$