First and second ionization energy - Multiple choice quiz

Name

What is the difference between the first and second ionization energies?

• The first ionization energy is the energy required to remove the first electron from a neutral atom, while the second ionization energy is the energy required to remove a second electron from a singly charged ion.
• The first ionization energy is always higher than the second ionization energy.
• The first ionization energy involves adding an electron, while the second involves removing one.
• The first ionization energy is the energy required to remove an electron from a positively charged ion.

Why is the second ionization energy of lithium much higher than the first?

• The second ionization energy is much higher because the electron is closer to the nucleus and experiences less electron shielding.
• The second ionization energy is lower because the electron is further from the nucleus.
• The second ionization energy is higher because the nucleus has more protons.
• The second ionization energy is lower because the atom is already positively charged.

What is the effective nuclear charge?

• The effective nuclear charge is the total number of protons in the nucleus.
• The effective nuclear charge is the net positive charge experienced by an electron in a multi-electron atom.
• The effective nuclear charge is the total number of electrons in an atom.
• The effective nuclear charge is the energy required to remove an electron from an atom.

According to Coulomb's law, why does it take more energy to remove the second electron from lithium?

• The electron is further from the nucleus and experiences a weaker attractive force.
• The electron is closer to the nucleus and experiences a weaker attractive force.
• The electron is closer to the nucleus and experiences a stronger attractive force.
• The electron is further from the nucleus and experiences a stronger attractive force.

What is the electron configuration of a lithium ion after the first ionization?

• The electron configuration of a lithium ion after the first ionization is 1s^1 2s^1.
• The electron configuration of a lithium ion after the first ionization is 1s^2 2s^1.
• The electron configuration of a lithium ion after the first ionization is 1s^2.
• The electron configuration of a lithium ion after the first ionization is 1s^1.