AS Level Chemistry All Answers Correct
1. Atomic Number: - What indicates the number of protons in an element? - Answer: Atomic number
2. Mass Number: - What is the term for the total number of protons and neutrons in an atom's nucleus? - Answer: Mass number
3. Ion: - What is an electrically...
- What happens during the ionization step in mass spectroscopy?
- Answer: A gaseous sample is bombarded with high-energy electrons to form 1+ ions
,8. Acceleration:
- What occurs during the acceleration phase of mass spectroscopy?
- Answer: Ions are accelerated through an electric or magnetic field
9. Deflection:
- What happens to ions during the deflection step in mass spectroscopy?
- Answer: Ions are deflected in a magnetic field according to their mass, with heavier ions deflecting
the least and lighter ions deflecting the most
10. Detection:
- What role does detection play in mass spectroscopy?
- Answer: A calibrated detector records the degree of deflection and translates it into mass
information
, 11. Mass Spectroscopy Information:
- What does mass spectroscopy reveal?
- Answer: It provides data about the masses of particles and their frequency of detection within the
machine
12. Mass Spectrum:
- What is displayed on a mass spectrum?
- Answer: It shows the relative abundance of different isotopes and the molecular peak, which is the
farthest to the right
13. Molecular Ion Peak:
- What does the molecular ion peak represent?
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