3
1 This question is about the first 36 elements in the periodic table:
H He
Li
Be B C N O F Ne
Na Mg Al Si P S Cl Ar
Ti
K Ca Sc V Cr Mn Fe Co Ni Cu Zn Ga Ge As Se Br Kr
From these 36 elements only, write the symbol for the element(s) that fit each description.
(a) The three elements that, when in a molecule, can form hydrogen bonds with other suitable
molecules.
........................................................... [1]
(b) The element in Period 2 with the successive ionisation energies shown below.
Ionisation number 1st 2nd 3rd 4th 5th 6th 7th 8th
Ionisation energy /
kJ mol–1 1000 2251 3361 4564 7012 8496 27 107 31 671
................... [1]
(c) An element that is a solid at RTP with a simple molecular lattice structure.
................... [1]
, 2
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OCR 2023
(d) The two elements with atoms containing five unpaired electrons.
....................................... [2]
(e) The element in Period 3 that exists in the solid state as a network of atoms bonded by strong
covalent bonds.
................... [1]
(f) The p-block element in Period 3 that forms a compound with fluorine with octahedral molecules.
................... [1]
(g) The element that forms 1– ions most readily.
................... [1]
(h) The element with an average atomic mass of 1.244 × 10–22 g.
................... [1]
© OCR 2023
,
1 This question is about the first 36 elements in the periodic table:
H He
Li
Be B C N O F Ne
Na Mg Al Si P S Cl Ar
Ti
K Ca Sc V Cr Mn Fe Co Ni Cu Zn Ga Ge As Se Br Kr
From these 36 elements only, write the symbol for the element(s) that fit each description.
(a) The three elements that, when in a molecule, can form hydrogen bonds with other suitable
molecules.
........................................................... [1]
(b) The element in Period 2 with the successive ionisation energies shown below.
Ionisation number 1st 2nd 3rd 4th 5th 6th 7th 8th
Ionisation energy /
kJ mol–1 1000 2251 3361 4564 7012 8496 27 107 31 671
................... [1]
(c) An element that is a solid at RTP with a simple molecular lattice structure.
................... [1]
, 2
© Turn over
OCR 2023
(d) The two elements with atoms containing five unpaired electrons.
....................................... [2]
(e) The element in Period 3 that exists in the solid state as a network of atoms bonded by strong
covalent bonds.
................... [1]
(f) The p-block element in Period 3 that forms a compound with fluorine with octahedral molecules.
................... [1]
(g) The element that forms 1– ions most readily.
................... [1]
(h) The element with an average atomic mass of 1.244 × 10–22 g.
................... [1]
© OCR 2023
,
