TOPIC 1 - Atomic structure and the Periodic Table
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What is the relative mass of an electron?
1/2000
What are isotopes?
Atoms of the same element with same number of protons but different number of neutrons.
What is the Relative Atomic Mass?
The weighted mean mass of an atom of an element compared to 1/12th of the mass of a carbon-12 atom.
What is the Relative Isotopic Mass?
Mass of an atom of an isotope compared to 1/12th of the mass of an atom of carbon-12.
What is the Relative Molecular Mass?
Mean mass of a molecule compared to 1/12th of the mass of a carbon-12 atom.
What is the M+ peak?
Molecular ion peak. Shows the relative molecular mass.
What is the M+1 peak?
The peak that has +1 m/z than the molecular ion peak due to the existence of a carbon 13 isotope.
How many orbitals has the ‘s’ subshell got? How many electrons?
1 orbital. 2 electrons.
How many orbitals has the ‘p’ subshell got? How many electrons?
3 orbitals. 6 electrons.
How many orbitals has the ‘d’ subshell got? How many electrons?
5 orbitals. 10 electrons.
How many orbitals has the ‘f’ subshell got? How many electrons?
7 orbitals. 14 electrons.
Which subshells has the first quantum shell got? How many electrons?
1s. 2 electrons.
Which subshells has the second quantum shell got? How many electrons?
2s, 2p. 8 electrons.
Which subshells has the third quantum shell got? How many electrons?
3s,3p,3d. 18 electrons.
Which shape does the s orbital have?
Spherical.
Which shape does the p orbitals have?
Dumbell shape. 3 orbitals. Px, Py and Pz.
What does spin pairing mean?
Electrons occupying the same orbital have different spins.
What are the different subshells from lowest energy to highest?
1s, 2s, 2p, 3s, 3p, 4s, 3d
What is the electron configuration of Chromium?
1s2, 2s2, 2p6, 3s2, 3p6, 4s1, 3d5 An electron is excited from the 4s to fill the 3d orbitals.
What is the electron configuration of Copper?
1s2, 2s2, 2p6, 3s2, 3p6, 4s1, 3d10 an electron is excited from 4s to fill the 3d subshell.
Which block is the one in red?
s block
Which block is the one in purple?
d block
Which block is the one in green?
p block
Which block is the one in purple?
f block.