How many ions are there in 0.187 mol of na+ ions

Answer : The number of ions present in 0.187 mole of sodium ions are,

Solution : Given,

Moles of sodium ions = 0.187 moles

As we know that

1 mole of substance contains number of ions

So, 0.187 moles of substance contains number of ions

Therefore, the number of ions present in 0.187 mole of sodium ions are,

metals are good conductor of electricity. it has free electrons on their surface. according to electron pool theory, each atom present in a metal crystal losses all of its valence electron and as a result a pool of free is form. these pool of electrons are free to move and   conduct electricity easily   while making metal as good conductor.

the correct answer is a. the ability of electrons to flow throughout the metal.

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