Name: Energy to Take Electrons Out: Ionisation Enthalpy
Uploaded: 2019-07-19
Duration: 3 min 6 s
Description: Ionisation enthalpy of an element can be the amount of energy required to remove an electron from an isolated gaseous atom. What does this mean? Learn about...

Question

The graph shows a sketch of

\log_{10}

(ionization energy) against number of electrons removed for magnesium.
Use this graph to answer the following questions.

Construct the equation for the ionization energy marked

X

(the

5^{th}

ionization energy).

Accepted Answer

The energy needed to remove electrons from a neutral atom to form a positively charged ion is a physical property that influences the chemical behaviour of the atom. By definition, the ionization energy of an element is the energy needed to remove the outermost, or highest energy, an electron from a neutral atom in the gas phase.

The first ionization energy of sodium, for example, is the energy it takes to remove one electron from a neutral atom. $Mg (g) \to {Mg}^{+} (g) + e^{-}$

The second ionization energy is the energy it takes to remove another electron to form a Mg²⁺ ion in the gas phase. ${Mg}^{+} (g) \to {Mg}^{2 +} (g) + e^{-}$

The third ionization energy can be represented by the following equation: ${Mg}^{2 +} (g) \to {Mg}^{3 +} (g) + e^{-}$ .

The fourth ionic equation ionization energy can be represented as follows : ${Mg}^{3 +} \to {Mg}^{4 +} + e^{-}$ .

The fifth ionic equation ionization energy can be represented as follows: ${Mg}^{4 +} (g) \to {Mg}^{5 +} (g) + e^{-}$

The graph shows a sketch of $\log_{10}$ (ionization energy) against number of electrons removed for magnesium.
Use this graph to answer the following questions.

Construct the equation for the ionization energy marked $X$ (the $5^{th}$ ionization energy).

Important Questions on Electrons in Atoms

Learn and Prepare for any exam you want !

The graph shows a sketch of log10(ionization energy) against number of electrons removed for magnesium. Use this graph to answer the following questions. Construct the equation for the ionization energy marked X(the 5th ionization energy).

Important Questions on Electrons in Atoms

Learn and Prepare for any exam you want !

The graph shows a sketch of $\log_{10}$ (ionization energy) against number of electrons removed for magnesium.
Use this graph to answer the following questions.

Construct the equation for the ionization energy marked $X$ (the $5^{th}$ ionization energy).