Edexcel A-Level Chemistry Paper 1 exam
2024
What is another name for the mass number? - nucleon number
What is another name for the atomic number? - proton number
What is an isotope? - atom of the same element with the same atomic number,
and a different number of neutrons
How is relative atomic mass measured? - relative to the mass of 1/12 of a carbon-
12 atom
What charge are ions in a mass spectrometer? - +1
What unit is given by a mass spectrometer? - m/z (mass / charge)
What type of compound produces an M+1 peak? - organic compound
Why are M+1 peaks seen in mass spectrometry? - carbon-13 is present in small
amounts
, Edexcel A-Level Chemistry Paper 1 exam
2024
What are the first four quantum subshells, in increasing energy levels? - s, p, d, f
What shape are s-orbitals? - spherical
What shape are p-orbitals? - elongated dumbbells
Which elements have unusual electronic configurations including 4s1 where 4s2
may be expected? - chromium and copper
Which shell fills up first? [3d/4s] - 4s
Which shell fills up first? [2p/3s] - 2p
How does spin-spin pairing occur? - orbitals in a subshell receive one electron,
then two before moving onto the next subshell
What is the equation for first ionisation energy (IE1)? - A(g) -> A+(g) + e-
What is the equation for second ionisation energy (IE2)? - A+(g) -> A2+(g) + e-
2024
What is another name for the mass number? - nucleon number
What is another name for the atomic number? - proton number
What is an isotope? - atom of the same element with the same atomic number,
and a different number of neutrons
How is relative atomic mass measured? - relative to the mass of 1/12 of a carbon-
12 atom
What charge are ions in a mass spectrometer? - +1
What unit is given by a mass spectrometer? - m/z (mass / charge)
What type of compound produces an M+1 peak? - organic compound
Why are M+1 peaks seen in mass spectrometry? - carbon-13 is present in small
amounts
, Edexcel A-Level Chemistry Paper 1 exam
2024
What are the first four quantum subshells, in increasing energy levels? - s, p, d, f
What shape are s-orbitals? - spherical
What shape are p-orbitals? - elongated dumbbells
Which elements have unusual electronic configurations including 4s1 where 4s2
may be expected? - chromium and copper
Which shell fills up first? [3d/4s] - 4s
Which shell fills up first? [2p/3s] - 2p
How does spin-spin pairing occur? - orbitals in a subshell receive one electron,
then two before moving onto the next subshell
What is the equation for first ionisation energy (IE1)? - A(g) -> A+(g) + e-
What is the equation for second ionisation energy (IE2)? - A+(g) -> A2+(g) + e-
