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If element X combines with oxygen to form an ionic compound X20, what is the charge of element X?
What Group does X belong to on the Periodic Table?

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Answer:

oxygen lies in 2 group that is in ii

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Element X belongs to group 1

Element X combines with Oxygen to form an ionic compound X₂O.

Definition of ionic compounds are as follows:

  • Ionic compounds are compounds are made up of ions by gaining or losing electrons.

  • In ionic compound one atom donate electron(s) and the other receive the electron(s).

The valency electron of an atom determines the kind of bonding that exist between atoms of elements.

Properties of Oxygen atoms.

  • Neutral Oxygen atom have a valency electron of 6 electrons. So it requires 2 electrons to attain the octet rule.

Now, this element that combine with oxygen has a chemical formula of X₂O.

  • This means 2 atoms of the element combine with 1 atom of oxygen.

  • Since the relationship is an ionic combination, 2 of the X atoms will donate 1 electron each for oxygen to attain the octet rule.

  • This means each of the X atoms donate one electron.

Atoms of element that donate one electron during combination are in group 1.

This elements has 1 valency electron in which they donate to attain octet rule.

The valency electrons also tells us the group the element belong(group 1).

There cations are represented as follows:

X¹⁺.

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