The 3rd element in the periodic table is lithium. Lithium(Li) electron configuration is 1s2 2s1. The period of lithium is 2 and it is a s-block element. The electron construction of lithium and also the orbital diagram room the main topics of this article. Also, period and team determination, valency and also valence electron of lithium, assorted reactions and also compound formation, bond development of lithium have actually been discussed.

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Electrons room arranged in different orbitals at different distances native the cell core of the atom follow to details rules. The setup of electron at different energy levels and also orbitals of one atom follow to specific rules is called electron configuration. The electron setup of atoms in a regular table can be done in 2 ways.

Electron construction via orbit.Electron construction via orbital.

Electron arrangement through orbitals is done on various principles. For example, Aufbau principle, Hund’s principle, Pauli’s exemption principle.

Table that Contents

Lithium Electron Configuration with orbit

All the electron in the atom revolve roughly the cell nucleus in a variety of circular routes of a certain radius. Circular paths of this certain radius are referred to as orbit(shell). Orbits room expressed by ‘n’.

And the very first orbit is to express by K, second orbit L, 3rd orbit M, 4th orbit N. The maximum electron holding capacity in each orbit is 2n2.

LiF bonding

The activity of alkali metals with details halogens slowly increases from lithium to cesium. That is, Li + and also F– ion in the crystal reduces the solubility the LiF. Therefore, LiF is less soluble in water. LiCl, LiBr, LiI room soluble in necessary solvents ethanol and also propanol.

The reaction the Oxygen through Lithium

Group-1 elements, such together alkali metals, have actually a greater ability to tie to oxygen. Lithium (an alkali metal) reacts with controlled amounts of oxygen to type LiO (oxide) compounds.

4Li (s) + O2 (g) → 2Li2O (lithium oxide)Heating lithium through excess oxygen to produce the compound Li2O2.2Li + O2 → Li2O2 (lithium peroxide).

The reaction that lithium through hydrogen and also the development of compounds

Hydrogen electron configuration is 1s1. Alkali steels react through dry hydrogen at a temperature of around 400 ° C to type metallic hydrides. However the lithium atom is different from all various other alkali metals. Lithium reacts v hydrogen at a temperature the 800°C to develop lithium hydride.

2Li + H2 → 2 LiH.

The reaction activity decreases as it move from lithium to cesium element. Steel hydride stability tends to decrease native LiH come CsH.

Lithium oxide

Lithium reacts with water to produce LiOH.2Li + 2H2O → 2LiOH + H2

Lithium (Li) is oxidized through oxygen in the wait to produce alkaline Li2O.4Li + O2 → 2Li2O

Li2O reacts with water to produce mild alkali LiOH.Li2O + H2O → 2LiOH

As Li2O is alkaline, the destroys the acidity of HCl and produces salt and also water.Li2O + 2HCl → 2LiCl + H2O

Reaction that lithium with various other elements

Lithium atom react with sulfur and phosphorus to form sulfide and also phosphide compounds.

16 Li + S8 → 8Li2S12Li + P4 → 4Li3P

The alkali metal lithium reacts with nitrogen(N2) in ~ high temperatures to type nitride compounds.

6Li + N2 → 2Li3N

The outstanding properties that lithium atoms

In general, facets of the same team have similarities in physical and also chemical properties. The facets of group-1 space alkali metals. The aspects are lithium (Li), sodium (Na), potassium (K), rubidium (Rb), cesium (Cs).

But the nature of lithium (Li) are different from the nature of all the other elements in this group. The elements in group-1 type ionic bond in halide compounds. But the halide compound of the lithium atom have actually covalent bonds.

For this reason, salt halide is soluble in water however lithium halide is an extremely slightly dissolve in water. LiCl, LiBr, and LiI room soluble in assorted organic solvents (ethanol, propanol, ether).

Alkali metals react with hydrogen at 400° C to type hydride compounds. Yet lithium atoms form lithium hydride compounds v hydrogen at a temperature of 800° C.2Li + H2 (800° C) → 2LiH.

The factors for the outstanding properties the lithium (Li) are-

The tiny size of Li atom and Li+ ion.The polarization volume of Li+ ions is high.The zero d orbital is absent at the valence level.Lithium is a high ionic potential element.

Due come the outstanding properties that lithium (Li), numerous distinctions that lithium with other alkali metals have actually been observed. Lock are-

Lithium is less active than alkali metals. Its bright shade does no fade conveniently when it comes in contact with air. In the instance of other alkali metals, their bright shade fades in call with air.Lithium (Li) reacts with oxygen to type only monoxide (Li2O) compounds. However never creates peroxide (Li2O2) or superoxide (LiO2).Lithium is the only alkali metal that reacts with nitrogen (N2) to create Li3N.6Li + N2 → 2Li3N.All other alkali steels do no react v nitrogen (N2).When the alkaline metal nitride is heated, that decomposes and also metallic nitride and oxygen are produced.2MNO3 → 2 MNO2 + O2. Here, When lithium nitride is heated, that decomposes and produces lithium monoxide (Li2O), NO2, and also oxygen (O2).4LiNO3 (heat) → 2Li2O + 4NO2 + O2Hydroxides that alkali metals have actually a solid base. Yet lithium hydroxide is a weak base.Lithium chloride (LiCl) combines v water to kind di-hydrate compounds. Yet NaCl, KCl, CsCl never type hydrate compounds.

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Lithium electron configuration and also orbital diagram room the main topics the this article. Also, period and team determination, valency and valence electrons, miscellaneous reactions and compound formation of lithium, bond formation of lithium have actually been discussed.


How carry out you write the electron configuration for lithium?Ans: Lithium electron configuration is 1s2 2s1.How many electrons are there in lithium?Ans: 3 electrons.What are the 3 electrons of lithium?Ans: Yes.What is the atom mass the lithium?Ans: Lithium conventional atomic massive is 6.941How many shells walk lithium have?Ans: 2 shells.How plenty of valence electrons does lithium(Li) have?Ans: The valence electron of lithium is one.