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Ionization Energy Hello students, I hope you may know the concept of Ionization energy. In 10th standerd we have leart about Ion and Different types of energies associated with it. Lets first talk about what is Ionization Energy? The energy required to remove valence electron form an isolated state or neutral gaseous atom is reffered as Ionization Energy. The ionization energy associated with removal of the first (most loosely held) electron. Ionization is an endothermic process which means that, it is positive for neutral atoms. There are four major factors which affects on Ionization energy are as follows: Atomic Size. Nuclear Charge. Screening Effect. Type of electron removed. Lets look towards how above factors affect ionization energy. Atomic size Atomic size is a distance between nucleus and the outermost shell of an atom. Atomic size depends upon atomic number. Ionization energy is inverselt proportional to atomic size. As atomic size increases nuclear charge ...

Effective Nuclear Charge According to Wikipedia , In atomic physics, the effective nuclear charge is the actual amount of positive (nuclear) charge experienced by an electron in a multi-electron atom. The symbol of effective nuclear charge is Zeff or Z*. ENC is the net positive charge experienced by an electron in a multi-electron atom. The effective nuclear charge on an atom is given by equation- Zeff = Z – S Where, Z = The number of protons in the nucleus (atomic number). S = The number of electrons between the nucleus and the electron in question (the number of nonvalence electrons). Question: Consider a neutral neon atom (Ne), a sodium cation (Na+), and a fluorine anion (F–). What is the effective nuclear charge for each? Solution: Start by figuring out the number of nonvalence electrons, which can be determined from the electron configuration. Ne has 10 electrons. The electron configuration is 1s22s2 2p6. The valence shell is shell 2 and contains 8 valence electrons...

Ethane C2H6 Hello students, welcome to my new blog on Stereo Chemistry , in this blog we will see about Ethane molecule and its configurations. Ethane molecule's chemical formula is C2H6. There is one sigma bond present between 2 carbon atoms and equal number of Hydrogen atoms attached to them. Ethane molecule generally shows 3 types of configurations: Saw-Horse formula Line-Wedge formula Newmann's projection formula Saw-Horse Formula In saw horse formula both carbons are placed diagonally. All bonds in molecule are shown by solid stick. The bond angle between 2 Hydrogen atoms of same carbon is 120degree. In saw horse formula 2 conformations are possible: Eclipsed Configuration. Staggered Configuration. In above diagram the left structure is eclipsed configuration and right hand side configuration is staggered. Here point to be noted is that, Staggered configuration is more stable than eclipsed configuration due to less steric hinderance. Now move towards...

What is Stereo Chemistry ? The branch of chemistry concerned with the three-dimensional arrangement of atoms and molecules and the effect of this on chemical reactions. What is Isomerism and its types? The compounds having same molecular formula but different physical & chemical properties and also different structure called as isomers. This phenomenon is called as Isomerism. Chain isomerism These isomers have same molecular formula but different carbon chain length. e.g, CH3-CH2-CH2-CH3 {n-Butane} & CH3-CH(CH3)-CH3 {iso-Butane}. Position isomerism The compounds having same molecular formula, same carbon chain length but different position occupied by particular atom or group, this structures are called as position isomers. e.g, CH3-CH2-CH2-Br & CH3-CH(Br)-CH3, in this structures position occupied bt Br group is different at positionn1 and 2 respectively. Functional isomerism The compounds having same molecular formula but different functional group attached are known...