Answer:
Aluminum , iron , gold , silver , nickels etc are the type of elements form metallic bonds .
The vapor pressure of a solution will decrease and the freezing point will decrease with an <span>increasing</span> in the amount of dissolved solute. So the answer is third option.

Actually Welcome to the Concept of the Chemistry.
The reaction that Is opposite of the decomposition is
==> Synthesis Reaction.
==> Catalyst always Speeds up any reaction, so that it quickly reaches to it's Equilibrium point and gets stabilize.
Answer:
Solid : The intermolecular space is very less
Liquid : The intermolecular space is fairly more than in solids
Solid : It has a fixed shape
Liquid : It has a fixed volume but shape changes according to where it is placed
Solid : eg : Books
Liquid : eg : water
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Answer:
since, atomic number=no. of electrons
atomic number :5 =no. of electrons: 5
atomic number :7 =no. of electrons: 7