Concept explainers
Interpretation: The electron-dot structures for F2, CF4, CH2Cl2, PH3, BrI, HO-, H2N- and H3C- should be drawn.
Concept introduction: Lewis dot structure is the representation which shows the bonding between atoms present in a molecule. It shows lone pairs and bond pairs that exist on each bonded atom.
Lewis dot structure is also known as Lewis dot formula or electron dot structure. The bond formation between the atoms takes place due to the sharing of valence electrons of bonded atoms while the remaining electrons present in outer shell represented as lone pair of electrons. To draw the Lewis structure, calculate the total number of valence electrons in each atom and draw the structure in such a way that each atom gets its octet configuration.
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Organic Chemistry: Structure and Function
- Use electron-dot symbols to show how two chlorine atoms form the diatomic molecule Cl 2. Explain how each atom has the electronic confi guration of the noble gas closest to it in the periodic table.arrow_forwardMatch each of the following with its correct answer The formal charge on nitrogen in the Lewis structure of NO+ is Choose... Choose. In the lewis structure for the CS, molecule, the number of unshared pairs of electrons on the central carbon is: 1 -1 The number of Tt bond (s) in the Lewis structure of NO- is Choose... An electron in the n= 6 level in hydrogen atom emits a photon with a wavelength of 93.8 nm. To what energy level does the electron move Choose... The formal charge on oxygen in the Lewis structure of NO+ is Choose...arrow_forwardAnswer the questions in the table below about the shape of the bromine trifluoride (BrF3) molecule. How many electron groups are around the central bromine atom? Note: one "electron group" means one lone pair, one single bond, one double bond, or one triple bond. What phrase best describes the arrangement of these electron groups around the central bromine atom? (You may need to use the scrollbar to see all the choices.) |(choose one) (choose one) linear bent T-shaped trigonal planar trigonal pyramidal square planar square pyramidal tetrahedral sawhorse trigonal bipyramidal octahedralarrow_forward
- Draw the Lewis dot structure for the following: BrF3, I3, PF5 (number of electrons in the outer shell: Br = F = I = 7, P = 5)arrow_forwardWrite electron configurations for the most stable ion formed by each of the elements , Ba, Se, and Cl (when in stable ionic compounds). (Express your answer as a series of orbitals. For example, the electron configuration of Li would be entered in complete form as 1s2 2s1 or in condensed form as [He]2s1.) a.) Electron configuration for the most stable ion of Ba b.) Electron configuration for the most stable ion of Se c.) Electron configuration for the most stable ion of Clarrow_forwardYou are trying to draw some Lewis structures for molecules based on some notes that a friend gave you. Unfortunately, your friend has very bad handwriting, so you can't read everything properly, especially the elemental symbols. You decide to write a shorthand for yourself, and you know that element Q has 4 valence electrons, element R has 5 valence electrons, element T has 6 valence electrons, and element X has 7 valence electrons. Determine the shape of each of the following molecules from what you know about their valence electrons. Choose the shape for each one from the dropdown menu. The molecule QX4 has a shape of The molecule RX3 has a shape of The molecule QTX2 has a shape ofarrow_forward
- Consider the ions Sc3+, CL-, K+, Ca2+, and S2-. Match these ions to the following pictures that represent the relative sizes of the ions.arrow_forwardSo if 2n^2 could predict the maximum number of electrons in the n shell. Then the 3rd shell should hold 18 electrons since chlorine has 17 electrons in a neutral state how come we say it pursues the octet rule despite it being able to hold 18 electrons? For example, it's shown during an ionic transfer with Na to gain an electron and be satisfied occurring to the octet rule. Please explain does it have to deal with the orbitals?arrow_forward[Review Topics] [References] Name the noble gas atom that has the same electron configuration as each of the ions in the following compo BaCl2 a. Ba²+, [Rn]; CI, [Ne] 2+ Ba²+, [Xe]; CI, [Ar] 2+ Ba²+, [Rn]; CI, [Ar] Ba²+, [Kr]; CI, [Ar] Al2 Te3 b. Al³+, [Ar]; Te², [Xe] O A1³+ , [Ar]; Te², [Kr] Al³+, [Ne]; Te², [Xe] Al³+, [Ne]; Te², [Kr] Na₂O c. ONa+, [He]; 0², [Ar] ONa+, [Ar]; 0², [Ar] ONa+, [Ne]; 0², [Ne] ONa+, [Ne]; 02, [He] K₂ S d. OK+, [Xe]; S², [Ar] OK+, [Kr]; S², [Kr] OK+, [Ar]; S2, [Ar] ©K+, [Ar]; S*, Xearrow_forward
- Decide whether these proposed Lewis structures are reasonable. proposed Lewis structure esc H= Br ! : 0: 1 Cl Explanation Q A :0: || g N The symbols of the problem atoms are:* 0 * If two or more atoms of the same element don't satisfy the octet rule, just enter the chemical symbol as many times as necessary. For example, if two oxygen atoms don't satisfy the octet rule, enter "O,O". : 0: 2 Cl: Check W S Yes. O No, it has the wrong number of valence electrons. The correct number is: O No, it has the right number of valence electrons but doesn't satisfy the octet rule. The symbols of the problem atoms are:* 0 O Yes. O No, it has the wrong number of valence electrons. The correct number is: O No, it has the right number of valence electrons but doesn't satisfy the octet rule. 0 Is the proposed Lewis structure reasonable? The symbols of the problem atoms are:* Yes. O No, it has the wrong number of valence electrons. The correct number is: 0 No, it has the right number of valence electrons…arrow_forwardThe color of dyes results from the preferential absorption of certain wavelengths of light. Certain dye molecules consist of symmetric pairs of rings joined at the center by a chain of carbon atoms, as shown in (Figure 1). Electrons of the bonds along the chain of carbon atoms are shared among the atoms in the chain, but are repelled by the nitrogen- containing rings at the end of the chain. These electrons are thus free to move along the chain but not beyond its ends. They look very much like a particle in a one-dimensional box. For the molecule shown, the effective length of the "box" is 0.85 nm. Part A Assuming that the electrons start in the lowest energy state, what is the longest wavelength this molecule will absorb? Express your answer with the appropriate units. HÀ ? d1 = Value Units Submit Request Answer Part B Assuming that the electrons start in the lowest energy state, what is the second longest wavelength this molecule will absorb? Express your answer with the appropriate…arrow_forwardWrite electron configurations for the following ions, and determine which have noble-gas Configurations Cr3+ N3- Sc3+arrow_forward
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