10 Questions
What is the lattice energy of LiF?
-1050 kJ
What is the standard heat of formation ($ riangle H^{ heta}$) of solid LiF?
-617 kJ/mol
What is the total energy required for the ion formation of LiF from its elements?
+192 kJ
Which step in the formation of lithium fluoride involves an exothermic process?
$LiF(g) ightarrow LiF(s)$
What is the reason for the existence of ionic substances like lithium fluoride?
Enormous release of energy when ions come together to form a solid
What causes the production of atomic or line spectra?
Passage of electric discharge through a gas
What happens to the atoms of the gas when an electric discharge passes through it?
They emit energy in the form of light
Why do we not see a continuous spectrum when a narrow beam of light from an electric discharge is passed through a prism?
The emitted light contains only a few colors
What is characteristic of the wavelengths of spectral lines in an atomic spectrum?
They are characteristic of the element producing them
What is another term for the series of lines observed when a narrow beam of light from an electric discharge is passed through a prism?
Atomic spectrum or emission spectrum
Explore the electron-transfer process and its relation to energy absorption in the formation of ionic substances using the example of lithium fluoride. Delve into the steps involved in electron transfer and the release of energy during the formation process.
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