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3 years ago

Why does the lithium atom develop a positive charge?

Chemistry

1 answer:

nikitadnepr [17]3 years ago

6 0

Answer:

Lithium develops a positive charge because it has one valence electron. Instead of lithium trying to steal 7 electrons from other elements to obtain an octet, it is easier to lose its one electron to become stable. Because neutral atoms contain the same amount of protons and electrons, when lithium loses one electron, there is one more proton than electrons.

In other words

Lithium has 3 protons and 3 electrons in its neutral state, but it loses one electron to become stable so it now has 3 protons and 2 electrons, and there is one more proton than electrons: +3 -2 = +1 charge

Explanation:

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Molar mass of HNO3 = 63 g/mol

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Based on the stoichiometry of reaction (3):

Theoretical moles of NO2 = 1.5(Moles HNO2 ) = 1.5(26064) = 39096

Assuming 80% yield:

Actual moles of NO2 = 0.8*39096 = 31277 moles

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Actual moles of NH3 required = 0.8*25022 = 20018 moles

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Why does the lithium atom develop a positive charge?​

Why does the lithium atom develop a positive charge?