On moving across a period- the atomic size decreases and nuclear charge increases and therefore the force of attraction exerted by the nucleus on the electron in the outermost shell increases- For the process A - g - e - -rightarrow A - g - - Delta H - xand - A - g rightarrow A - g - e - - Delta H - y Select correct alternate-A- Ionization energy of A g -is yB- Electron affinity of A g is xC- Electron affinity of -A g is - yD- All are correct statements

You visited us 1 times! Enjoying our articles? Unlock Full Access!

Byju's Answer

Standard XII

Chemistry

Electron Affinity

On moving acr...

Question

On moving across a period, the atomic size decreases and nuclear charge increases and therefore the force of attraction exerted by the nucleus on the electron in the outermost shell increases.
For the process
$A_{(g)} + e^{-} \to A_{(g)}^{-}; Δ H = x a n d A_{(g)}^{-} \to A_{(g)} + e^{-}; Δ H = y$
Select correct alternate:

Ionization energy of $A_{(g)}^{-}$ is y

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

Electron affinity of $A_{(g)}$ is x

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Electron affinity of $A_{(g)}$ is -y

No worries! We‘ve got your back. Try BYJU‘S free classes today!

All are correct statements

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Open in App

Solution

The correct option is A
Ionization energy of $A_{(g)}^{-}$ is y

$Δ H_{e g} = - E . A$

Suggest Corrections

Similar questions

On moving across a period, the atomic size decreases and nuclear charge increases and therefore the force of attraction exerted by the nucleus on the electron in the outermost shell increases.
For the process
$A_{(g)} + e^{-} \to A_{(g)}^{-}; Δ H = x a n d A_{(g)}^{-} \to A_{(g)} + e^{-}; Δ H = y$
Select correct alternate:

On moving across a period, the atomic size decreases and nuclear charge increases and therefore the force of attraction exerted by the nucleus on the electron in the outermost shell increases.
The first ionization potentials (in eV) of As and Se atoms, respectively, are:

On moving across a period, the atomic size decreases and nuclear charge increases and therefore the force of attraction exerted by the nucleus on the electron in the outermost shell increases.
Potassium forms $K^{+}$ ion but it does not form $K^{2 +}$ because of;

Q. The amount of energy released when an atom in the gaseous state accepts an electron to form an anion. factor which affect electron affinity are: atomic size and Nuclear charge. As atomic radii increases, electron affinity increase. As nuclear charge increase, electron affinity increase. it decrease down a group and increases across a period. Explain.

Q. If

M (g) \to M^{+} (g) + e^{-}; Δ H = 100 e V M (g) \to M^{2 +} (g) + 2 e^{-}; Δ H = 250 e V

Which is/are correct statement(s)?
(

I E =

ionization energy,

Δ H_{g e} =

electron gain enthalpy)

Join BYJU'S Learning Program

On moving across a period, the atomic size decreases and nuclear charge increases and therefore the force of attraction exerted by the nucleus on the electron in the outermost shell increases. For the process A(g)+e−→A−(g); ΔH=xand A−(g)→A(g)+e−; ΔH=y Select correct alternate:

The correct option is A Ionization energy of A−(g) is y ΔHeg=−E.A

The correct option is A
Ionization energy of $A_{(g)}^{-}$ is y

$Δ H_{e g} = - E . A$