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Gekata [30.6K]
3 years ago
5

What types of elements- metals,

Chemistry
1 answer:
crimeas [40]3 years ago
7 0

Answer:

Noble gases

Explanation:

The noble gases are non-metals that requires the highest amount of energy to remove an electron from their shells.

The reason for this difficult is that their electronic configuration confers a stable configuration them.

  • The ionization energy is the energy required to remove the most loosely held electrons in an atom.
  • Due to the special stability of noble gases, it is very difficult to remove electrons from an atom of noble gases.
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1: The atomic number of an atom is equivalent to which of the following?
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The number of ions in 17.1 gm of aluminum sulphate Al2 (SO4)3 =….. [Molar mass of Al2 (SO4)3 = 342 gm]
katen-ka-za [31]

Answer:

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Explanation:

The number of ions in 17.1 gm of aluminum sulphate Al2 (SO4)3 =….. [Molar mass of Al2 (SO4)3 = 342 gm]

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in 2 molecules there are 2X5= 10 ions

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0.0500 moles = 0.0500 X 6.02 X 10^23 molecules =

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