MEDIUM
AS and A Level
IMPORTANT
Earn 100

Element X having electronic configuration:1s22s22p63s23p63d84s2 forms an ion of type X2+.
Write the symbol for the sub-shell that begins to fill after the 3d and 4s are completely full.

Important Questions on Electrons in Atoms

MEDIUM
AS and A Level
IMPORTANT
Give the equation representing the 1st Ionization energy of Magnesium.
MEDIUM
AS and A Level
IMPORTANT
Give the equation representing the 3rd ionization energy of magnesium.
MEDIUM
AS and A Level
IMPORTANT
State which ionization energies are represented by the equations below.
Mg3+(g)Mg4+(g)+e-
MEDIUM
AS and A Level
IMPORTANT
State which ionization energies are represented by the equations blow.
Al5+(g)Al6+(g)+e-
MEDIUM
AS and A Level
IMPORTANT
The graph shows a sketch of log10(ionization energy) against number of electrons removed for magnesium.
Use this graph to answer the following questions.
Question Image
Explain why the first two electrons are relatively easy to remove.
MEDIUM
AS and A Level
IMPORTANT
The graph shows a sketch of log10(ionization energy) against number of electrons removed for magnesium.
Use this graph to answer the following questions.
Question Image
Explain why there is a sharp rise in ionisation energy when the third electron is removed.