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Problem 2. Which critical residence did Mendeleev use to classify the elements On this periodic desk and did he stick to that?
(d) Either of them can demonstrate a bigger adjust in temperature since the temperature improve is dependent upon things apart from distinct heat ability.
Reply: Electron obtain enthalpy refers to inclination of the isolated gaseous atom to just accept an extra electron to type a detrimental ion. While electronegativity refers to inclination in the atom of a component to draw in shared pair of electrons in the direction of it within a covalent bond.
Rationalization: Proton and electron have equal but reverse costs. Proton have good and electron have unfavorable charge. Cost on an alpha particle is equal to that of 2 protons.
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Concern six. Demonstrate why chlorine may be converted into chloride ion additional easily when compared with fluoride ion from fluorine ?
Rationalization: Digital camera lens is convex lens. An object situated past centre of curvature in front of a convex lens will make an actual, inverted graphic and that is smaller sized than the dimensions of the article.
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Problem 21. Other than tetrahedral geometry, One more achievable geometry for CH4 is square planar While using the 4 H atoms for the comers on the square as well as C atom at its centre. Reveal why CH4 is just not square planar?