In VSEPRT‚ you will see two kinds of geometries Electron pair geometry: This geometry includes all the electron pairs (bp + lp) around the central atom. Molecular geometry: This includes only placement of atoms (bp) in the molecule. When there is no lone pair in molecules the two geometries are same. PART C VSEPR Theory (Valence Shared Electron Pair Repulsion Theory) Syllabus: Various rules under VSEPR theory to explain molecular geometry (following examples may be taken to explain various
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the number of all bonding pairs and lone pairs is calculated‚ next‚ these pairs of electrons are rearranged in order to minimize the repulsion between them. Different number of bonding pairs and lone pairs of electrons can form different structure. When there are only two bonding pairs around the central atom‚ for instance‚ the structure is likely to be linear‚ where the angle between the two bonds is 180¡ã. When there are three bonding pairs and no lone pairs of electrons‚ the shape of this
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how close atoms can get Hydrogen bonding: * Dipole-Dipole attraction * Occurs between H atoms (positive charge) and highly electronegative atoms (negative charge) such as O‚ N‚ F * δ = lowercase delta (+/-) * hydrogen reacts with a lone pair * Transient bond (temporary) * H has a high boiling point * Ice has crystalline structure * Water molecule is bent: 107.5° angle * Adhesion: between molecules and surface * Cohesion: between molecule and molecule * Intermolecular:
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pairs used in step 4 from the number of bonding pairs determined in step 3. Verify that the result is 2 for N2H4. Lone pairs are then placed around each terminal atom to achieve a full outer level‚ and any remaining pairs are assigned to the central atom(s). Explain the drawing that has resulted for N2H4. 6. In step 6‚ if any central atom drawn in step 5 does not have an octet‚ lone pairs from the terminal atoms must be converted to double or triple bonds involving the central atom. Why was this
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Role of Grandmotherhood in Single Parent Families Lone parent families have long been analysed and researched by how they function and how children from these families are affected and develop. Drawing on a research paper from the Journal of Intergenerational Relationships‚ Harper and Ruicheva (2010) discuss the increasing significance of grandmothers’ involvement and frequent adaptions to becoming replacement partners and parents within lone mother families (Harper and Ruicheva‚ 2010). This critique
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Monster Legend Jeffery Jerome Cohen writes in his essay Monster Culture (Seven Theses) that cultures can be understood by the monsters they have. Through seven theses‚ he argues for the importance of monsters and reaches a conclusion that monsters can define a culture. These creatures of the imagination are born from fears of the unknown and desires of the forbidden. They are the vampires and zombies‚ ghosts and goblins‚ dragons and demons that invade fantasy and fiction‚ dominating novels
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being torpedoed in the Mediterranean by German pilots. During WWII‚ he was in the Navy serving on the U.S.S. Lansdale as a rank of E5. When the U.S.S. Lansdale sank having a life preserver is what kept him alive until the Coast Guard could get the survivors. His time spent floating in the ocean is what made him change his life. To make this story go more in depth‚ the research questions will help this process. These questions will help create a clearer understanding of the situation. Some of the other
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Prophecy and fate play a central role in Sophocles’ Greek tragedy‚ Oedipus the King. Even before Oedipus is born‚ the god Apollo has already determined the tragic nature of his existence. Each action that Oedipus takes to defy the gods causes himself and the city of Thebes to suffer greatly‚ substantiating Apollo’s original intentions. It is important to note that the audience is aware of the ultimate outcome of Oedipus. Sophocles used tragic irony in many plays‚ where the audience understands the
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as “those who encourage‚ endorse‚ condone‚ justify‚ or support the commission of a violent criminal act to achieve political‚ ideological‚ religious‚ social‚ or economic goals” (U.S. Department of Justice). Per authors‚ Mark Hamm and Ramon Spaaj‚ a lone wolf terrorist can be identified as the construction and exploitation of fear through violence or the threat of violence committed by a single individual who does not receive orders‚ direction or material support from outside sources to pursue political
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Some people say he did it! Other say the evidence tells a different story. Books have set forth theories of the murders and experts have sounded off with their opinions of the case. And multiple appeals have been made to find the true justice. No matter what side of the truth you fall on‚ there is no doubt that the other side has some validity to its case. As with most cases that stir the public’s opinion‚ the case of Jeffrey MacDonald‚ a Green Beret and medical base doctor who was accused and
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