5076 Ch 02a Atomic Structure

1. 1[blank_start]Large[blank_end] amount of heat is needed to [blank_start]overcome[blank_end] the strong [blank_start]electrostatic[blank_end] forces
   of attraction between [blank_start]ions[blank_end], hence sodium chloride has higher melting point
   than chlorine.

   1. ALarge
   2. Bovercome
   3. Celectrostatic
   4. Dions
2. 2Which substance is a mixture containing elements and compounds

   1. Aair
   2. Bcalcium
   3. Cbrass
   4. Dbromine
3. 3[blank_start]Bromine[blank_end] is a reddish brown liquid at room temperature.

   1. ABromine
4. 4Which substances cannot be further decomposed?

   1. Acopper
   2. Bammonia
   3. Ccopeer(II) sulfate
   4. Dhydrogen
5. 5Element X has 4 valence electrons. Element Y has 6 valence electrons. The compounds formed has
   ___atom of X and ___ atoms of Y.

   1. A2, 1
   2. B1, 2
   3. C1, 1
   4. D2, 2
6. 6The number of protons [blank_start]4[blank_end]
   The number of neutrons [blank_start]5[blank_end]
   The number of electrons [blank_start]2[blank_end]
   

   

   1. A4
   2. B5
   3. C2
7. 7The type of bonding present in ammonia and carbon dioxide is [blank_start]covalent[blank_end] bonding.

   1. Acovalent

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GCE/O level Chemistry Quiz on 5076 Ch 02a Atomic Structure, created by Fatimah Beg on 16/09/2018.

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Fatimah Beg

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