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Assignment: Structure of Materials & Chemical bonding 1. Describe the parts of an atom. Define proton,...
1) Define the following: matter, element, atom, trace element, proton, electron, neutron, atomic number, mass number,...
1) Define the following: matter, element, atom, trace element, proton, electron, neutron, atomic number, mass number, isotopes, radioisotope, molecule, compound, salt, ion. 2) List the 6 elements that make up about 99% of the weight of an organism. 3) What are the functions of the trace elements iron, fluorine (fluoride), and iodine? 4) An iodine deficiency can result in goiter. True/False 5) Where are protons, neutrons and electrons located? 6) Can you determine the atomic number and mass number from...
hey , can you please do 1 through 7 please, thank you! content-disposition=inline%3B%20filena 1. Describe the...
hey , can you please do 1 through 7 please, thank you!
content-disposition=inline%3B%20filena 1. Describe the general features of metal, ceramic, and polymer (plastics), give two examples for each type of the material. (15 credits) 2. Take ONE design model from (1) turbine engine blade, (2) thermal shield plate for space shuttles, (3) laptop computer case, (4) your own and explain how you are going to select a suitable material? (hint: start with the understanding of the material requirement for...
Answer 1-4 (#3 and #4 are tables) shell provides stability to the atom. Different chemical bonds...
Answer 1-4 (#3 and #4 are tables)
shell provides stability to the atom. Different chemical bonds are based on the way in which the atoms fill their valence shells. The major types of chemical bonds include: ionic bonds covalent bonds (both types, i.c. polar covalent and non-polar covalent bonds), and hydrogen bonds. Atoms can use two strategies to fill their valence shell: they can share electrons between their valence shells, or they can give or take electrons from other nearby...
De Senevi Samar CHEM DEPT O SCIENCE CHEMISTRY) LINCOLN UNIVERSITY PROBLEM SET COMEWORK) Structure and Bonding...
De Senevi Samar CHEM DEPT O SCIENCE CHEMISTRY) LINCOLN UNIVERSITY PROBLEM SET COMEWORK) Structure and Bonding Chapter 1) You must show your work on all questions to recen t (10 points) Give the ground-state electron configuration for turime si nu 2. (15 points) Consider the structure of re, shown below, to answer the following questions HN-C-NI (a). Fill in any non-bonding valence electrons that are missing from the line-bond structure (b). What is the hybridization of carbon atom in urea...
1. The chromium-chromium bonding in a molecule uses the 3d orbitals of the chromium atoms. a....
1. The chromium-chromium bonding in a molecule uses the 3d orbitals of the chromium atoms. a. Draw the 3d orbitals of a chromium atom being sure to label the x, y and z axes. Standard convention is that the z-axis is parallel to the internuclear axis. b. Draw the MO energy diagram for an isolated [Cr2]2+ fragment (no ligands!) assuming the interactions of only the 3d orbitals. Assume that the z-axis is parallel to the internuclear axis c. Next to...
Chemical Bonding Name Directions: If needed, answer the following on a separate sheet of paper: 1....
Chemical Bonding Name Directions: If needed, answer the following on a separate sheet of paper: 1. Normally, what is the maximum number of valence electrons possible around an atom? the Lewis dot structure/diagram for the following neutral atoms: C.N.O.S.P. CI 2. Using the directions from your notes or book, draw a Lewis Structure for the following compounds on separate sheets of paper. Show calculations of valence electrons. O, SO, HONO (N in the middle). SiH.CI CO (C in center).CH..NH. NO,...
All questions showing all work and units please Chemistry 101/103 Due date: Friday, November 14.2019 Problem...
All questions showing all work and units please
Chemistry 101/103 Due date: Friday, November 14.2019 Problem Set 2: Atomic Structure and Chemical Bonding 1. (15 marks) When the excited electron in a hydrogen atom falls from an unknown level to n-5, a photon of 3740 nm wavelength is emitted. What is the initial position for this electron? 2. (15 marks) Answer and explain: a) How many electrons can have: i.n=3,1 = 2? ii.n=3,1-2, m/=0? iii. n=3,1=2, ms - +1/2? iv....
My homework is due tomorrow and I have work! Please help me and answer these questions!...
My homework is due tomorrow and I have work! Please help me and
answer these questions! I'll give a thumbs up!
Electronic Structure of Atoms 1.20 Write the ground-state electron configuration for each atom. After each atom is its atomic number in parentheses. (a) Sodium (11) (b) Magnesium (12) (c) Oxygen (8) (d) Nitrogen (7) 1.21 Identify the atom that has each ground-state electron configuration. (a) 1s 2s 2p 3:23p (b) 1:2 2:22 1.23 How many electrons are in the...
e. 18 Test Your Knowledge MULTIPLE CHOICE: Choose the one best answer. 1. Each element has...
e. 18 Test Your Knowledge MULTIPLE CHOICE: Choose the one best answer. 1. Each element has its own characteristic atom in which a. the atomic mass is constant. b. the atomic number is constant. c. the mass number is constant. d. Two of the above are correct. e. All of the above are correct. 2. Which of the following is not a trace element in the human body? a. iodine b. zinc c. iron d. calcium e. fluorine 3. A...
Discuss the pharmacokinetics of children 1 year old or older. Discuss reasons pediatric patients are subject...
Discuss the pharmacokinetics of children 1 year old or older. Discuss reasons pediatric patients are subject to adverse drug reactions when drug levels rise too high. Discuss dosage determination, noting that pediatric doses have been established for some drugs but not for others and, therefore, for drugs that do not have established pediatric doses, the doses can be extrapolated from adult doses. Discuss the appropriate steps in determining exposure to teratogens. Discuss drug therapy during breast-feeding and the potential risks...
hey , can you please do 1 through 7 please, thank you!
content-disposition=inline%3B%20filena 1. Describe the general features of metal, ceramic, and polymer (plastics), give two examples for each type of the material. (15 credits) 2. Take ONE design model from (1) turbine engine blade, (2) thermal shield plate for space shuttles, (3) laptop computer case, (4) your own and explain how you are going to select a suitable material? (hint: start with the understanding of the material requirement for...
Answer 1-4 (#3 and #4 are tables)
shell provides stability to the atom. Different chemical bonds are based on the way in which the atoms fill their valence shells. The major types of chemical bonds include: ionic bonds covalent bonds (both types, i.c. polar covalent and non-polar covalent bonds), and hydrogen bonds. Atoms can use two strategies to fill their valence shell: they can share electrons between their valence shells, or they can give or take electrons from other nearby...
De Senevi Samar CHEM DEPT O SCIENCE CHEMISTRY) LINCOLN UNIVERSITY PROBLEM SET COMEWORK) Structure and Bonding Chapter 1) You must show your work on all questions to recen t (10 points) Give the ground-state electron configuration for turime si nu 2. (15 points) Consider the structure of re, shown below, to answer the following questions HN-C-NI (a). Fill in any non-bonding valence electrons that are missing from the line-bond structure (b). What is the hybridization of carbon atom in urea...
Chemical Bonding Name Directions: If needed, answer the following on a separate sheet of paper: 1. Normally, what is the maximum number of valence electrons possible around an atom? the Lewis dot structure/diagram for the following neutral atoms: C.N.O.S.P. CI 2. Using the directions from your notes or book, draw a Lewis Structure for the following compounds on separate sheets of paper. Show calculations of valence electrons. O, SO, HONO (N in the middle). SiH.CI CO (C in center).CH..NH. NO,...
All questions showing all work and units please
Chemistry 101/103 Due date: Friday, November 14.2019 Problem Set 2: Atomic Structure and Chemical Bonding 1. (15 marks) When the excited electron in a hydrogen atom falls from an unknown level to n-5, a photon of 3740 nm wavelength is emitted. What is the initial position for this electron? 2. (15 marks) Answer and explain: a) How many electrons can have: i.n=3,1 = 2? ii.n=3,1-2, m/=0? iii. n=3,1=2, ms - +1/2? iv....
My homework is due tomorrow and I have work! Please help me and
answer these questions! I'll give a thumbs up!
Electronic Structure of Atoms 1.20 Write the ground-state electron configuration for each atom. After each atom is its atomic number in parentheses. (a) Sodium (11) (b) Magnesium (12) (c) Oxygen (8) (d) Nitrogen (7) 1.21 Identify the atom that has each ground-state electron configuration. (a) 1s 2s 2p 3:23p (b) 1:2 2:22 1.23 How many electrons are in the...
e. 18 Test Your Knowledge MULTIPLE CHOICE: Choose the one best answer. 1. Each element has its own characteristic atom in which a. the atomic mass is constant. b. the atomic number is constant. c. the mass number is constant. d. Two of the above are correct. e. All of the above are correct. 2. Which of the following is not a trace element in the human body? a. iodine b. zinc c. iron d. calcium e. fluorine 3. A...
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