Podcast
Questions and Answers
Why does the first ionisation energy increase along a period?
Why does the first ionisation energy increase along a period?
- Because of decreasing shielding
- As a result of greater electrostatic forces of attraction (correct)
- Due to an increasing atomic radius
- Because of shielding effect
What causes the decrease in first ionisation energy down a group?
What causes the decrease in first ionisation energy down a group?
- Decreasing atomic radius
- Increasing shielding (correct)
- Greater electrostatic forces of attraction
- Decreasing shielding
Why does the first ionisation energy of Aluminium differ from the expected value?
Why does the first ionisation energy of Aluminium differ from the expected value?
- Greater electrostatic forces of attraction
- Decreasing shielding
- Single pair of electrons with opposite spin (correct)
- Due to decreasing atomic radius
What does a sudden large increase in successive ionization energies represent?
What does a sudden large increase in successive ionization energies represent?
Why is more energy required to remove an electron from an orbital closer to the nucleus?
Why is more energy required to remove an electron from an orbital closer to the nucleus?
What does the large energy increase in removing an electron closer to the nucleus provide evidence for?
What does the large energy increase in removing an electron closer to the nucleus provide evidence for?
Which factor contributes to the instability of an atom with unpaired electrons?
Which factor contributes to the instability of an atom with unpaired electrons?
In the example provided, why does the electron configuration change from 3p⁴ to 3p³ 4s¹?
In the example provided, why does the electron configuration change from 3p⁴ to 3p³ 4s¹?
What is ionisation energy defined as?
What is ionisation energy defined as?
Why do successive ionisation energies generally increase?
Why do successive ionisation energies generally increase?
Which type of electron arrangement is generally more stable?
Which type of electron arrangement is generally more stable?
What effect does increased electron pairing have on the stability of an atom?
What effect does increased electron pairing have on the stability of an atom?
What happens to an atom when it forms an ion?
What happens to an atom when it forms an ion?
What is the purpose of Time of Flight (TOF) Mass Spectrometry?
What is the purpose of Time of Flight (TOF) Mass Spectrometry?
Which step in Mass Spectrometry involves passing a high voltage over the chamber to ionize atoms?
Which step in Mass Spectrometry involves passing a high voltage over the chamber to ionize atoms?
What happens during the Acceleration step in Mass Spectrometry?
What happens during the Acceleration step in Mass Spectrometry?
In Mass Spectrometry, what role does the magnetic field play during Ion Drift?
In Mass Spectrometry, what role does the magnetic field play during Ion Drift?
What occurs at the Detection step in Mass Spectrometry?
What occurs at the Detection step in Mass Spectrometry?
