Periodic Trends: Ionization Energy Video Lessons

Concept: Understanding Ionization Energy

# Problem: The successive ionization energies for an unknown element are:I1 = 896 kJ/molI2 = 1752 kJ/molI3 = 14,807 kJ/molI4 = 17,948 kJ/molTo which family in the periodic table does the unknown element most likely belong?

###### FREE Expert Solution

Ionization energy is the energy required to remove an electron from an element.

Now we can see here that we have multiple ionization energies for the same element. We can see that they have a subscript after I, which just denotes the nth electron to be removed from a specific element.

The general trend is that it would get harder and harder to remove electrons, which explains the increasing ionization energy.

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###### Problem Details

The successive ionization energies for an unknown element are:

I1 = 896 kJ/mol

I2 = 1752 kJ/mol

I3 = 14,807 kJ/mol

I4 = 17,948 kJ/mol

To which family in the periodic table does the unknown element most likely belong?