Ionization Energy Quiz

What is ionization energy?

• The energy required to add an electron to a neutral atom

• The energy required to remove an electron from a neutral atom

• The energy required to combine two atoms into a molecule

• The energy required to split an atom into protons and electrons

Why is ionization energy always positive?

• Because it decreases the number of protons in the nucleus

• Because it involves the creation of a new electron

• Because it requires energy to overcome the attraction between the nucleus and the electron

• Because it releases energy when an electron is added

What trend is observed in the ionization energy of group one elements as you move down the group?

• Ionization energy increases

• Ionization energy remains constant

• Ionization energy fluctuates randomly

• Ionization energy decreases

Which element requires more energy to remove an electron, hydrogen or lithium?

• Hydrogen

• Lithium

• Both require the same amount of energy

• Neither requires energy

What is the electron configuration of a neutral lithium atom?

• 1s2 2p1

• 1s1

• 2s2 2p1

• 1s2 2s1

How does electron shielding affect the ionization energy of lithium?

• It increases the ionization energy

• It decreases the ionization energy

• It has no effect on ionization energy

• It makes the ionization energy unpredictable

What is the effective nuclear charge experienced by the outer electron in lithium?

• +2

• +1

• +3

• 0

Why is it easier to remove the outer electron from lithium compared to hydrogen?

• Because the outer electron in lithium is further from the nucleus

• Because hydrogen has more electrons

• Because lithium has more protons

• Because lithium has a higher nuclear charge

What is the relationship between distance from the nucleus and ionization energy?

• The closer the electron, the lower the ionization energy

• Distance has no effect on ionization energy

• The further the electron, the higher the ionization energy

• The closer the electron, the higher the ionization energy

What happens to the effective nuclear charge when electron shielding is considered?

• It is slightly reduced

• It remains the same

• It decreases significantly

• It increases significantly