O-LevelChemistryMetals & Reactivity5070/12 · Oct/Nov 2023 · Q241 Mark
Some properties of elements in Group VII and the reasons for these properties are shown. Which row shows a property and the reason for this property?
Aall the elements exist as diatomic molecules, each atom has seven electrons in the outer shell
and can share a pair of electrons
Bthe elements are classified as metals, when solid, the elements are shiny
Ciodine displaces bromine from aqueous potassium bromide, bromine is more reactive than iodine
Dthe boiling point increases as the group is descended, as the group is descended it becomes harder to
break the covalent bond between the atoms
✓ Correct answer
A: all the elements exist as diatomic molecules, each atom has seven electrons in the outer shell and can share a pair of electrons
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