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HELP(a) Elements X, Y and Z have atomic numbers 6,9 and12 respectively. Which one : (i) forms an anion, (ii) forms a cation,(b) State the type of bond between Y and Z and give itsmolecular formula.​

Answer»

Answer:

  1. X SHARES the electrons with other therefore it forms covalent bonds and no ionic bond.
  2. Y forms Anion as it's outer orbit contains 7 electrons.(GAINS 1 electron)
  3. Z forms the Cation as it's outer orbit contains only 2 electrons.( donates 2 electrons).

Y and Z will form The Ionic bond as the contain ions Y(non-metal) and Z(metal)

Atomic NUMBER of Y= 9 (given)

According to periodic table the this element is Flourine(F) which is HIGHLY reactive and has tendency to gain electron.

Atomic number of Z= 12 (given)

According To the periodic table this element is magnesium(Mg) and it is a metal and donates 2 electrons to flourine

THEREFORE, Molecular formula will be MGF2 or YZ2

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