WebFeb 17, 2024 · Q.1. Number of protons, neutrons and electrons in the element 89 X 231 is. (b) Number of p = number of e– = 89 and neutrons 231 – 89 = 142. Q.2. Atoms with same mass number but different atomic numbers are called. (b) Atoms with mass number but different atomic numbers are called isobars. Q.3. WebNCERT Solutions Class 11 Physics Chapter 4 – Free PDF Download. NCERT Solutions for Class 11 Physics Chapter 4 Motion in a Plane is one of the important study materials for Class 11 students as it is one of the most scoring chapters in kinematics. Students must try to understand each and every topic in a detailed way so that they can write …

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WebThe Formula for Boiling Point. It are often calculated as: Kb = RTb2M/ΔHv, R is that the universal gas constant. Tb is that the boiling temperature of the pure solvent [in K] M is that the molar mass of the solvent. ΔHv is that the heat of vaporization per mole of the solvent. If the warmth of vaporization and therefore the vapor pressure of ... WebAnswer: According to VSEPR theory, if CH 4 were square planar, the bond angle would be 90°. For tetrahedral structure, the bond angle is 109°28′. Therefore, in square planar structure, repulsion between bond pairs would be more and … mike horn wikipedia

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WebEvery period starts with the filling of the principal quantum number (n). The value of n for the 6th period is equal to 6. Now, for n = 6, the azimuthal quantum number (l) can have “0, 1, 2, 3, 4” values. According to Aufbau’s principle, electrons are added to various orbitals in order of their increasing energies. Web11. (7 pts) Consider a molecule with the formula: IF 2 C l 3 . Provide the following information ( a ) total number of valence electrons; ( b ) Lewis structure; ( c ) Formal charge of each atom; ( d ) number of electron domains; ( e ) shape of the electron domains; ( f ) molecular geometry shape; and ( g ) provide an overall dipole moment if ... WebThe most common example is making tea. While preparing tea, a filter or a sieve is used to separate tea leaves from the water. Through the sieve pores, only water will pass. The liquid which has obtained after filtration is called the filtrate; in this case, water is the filtrate. The filter can be a paper, cloth, cotton-wool, asbestos, slag ... mike hornung compass