Lewis dot structures - Study guides, Class notes & Summaries

Chem 219 Unit 1 Exam Questions With 100% Correct Answers catenation - answerthe bonding of an element to another atom of the same element (carbon likes to do catenation) What controls the properties and reactivity of an organic molecule? - answerThe molecule's shape and composition Why do atoms form bonds to other atoms? What is the driving force for atoms to join together? - answerenergetic stability What does energetically stable mean? - answerAtoms of elements are more stable when th...

Chem 120 exam guide highly recommended Degenerate Degenerate orbitals = 2+ orbitals w/equal energy (ex= 2p) -One electron goes into each degenerate orbital before any pairing occurs Requires energy 1s-> 2s requires energy -energy levels are dictated by principle quantum number (n) -need more energy for an electron to move away from the nucleus -energy levels get closer together as they increase in quantum number Orbitals B/c 2s and 2p orbitals have the same principal quant...

Element Builder- Gizmos Questions and Answers Rated A What are elements Pure substances that are made up of one kind of atom What are atoms Tiny particles of matter that are made up of three particles: protons, neutrons, and electrons Where is the proton located In the center of the atom, called the nucleus Which particles are located in the nucleus Protons and neutrons Which particles orbit around the nucleus Electrons What causes the element name to change The number of protons that you a...

Many of the properties of water can be accounted for by the fact that correct answer: it is polar Compounds exist as a result of correct answer: chemical reaction In general, chemical bonding brings together elements in the correct ratios so that all of the atoms involved (except H and He) form a/an correct answer: octet What type of bond exists when valence electrons are shared between two atoms? correct answer: covalent bond What type of electron pair is indicated by the arrow ...

Chem 219 Unit 1 Exam Questions With 100% Correct Answers catenation - answerthe bonding of an element to another atom of the same element (carbon likes to do catenation) What controls the properties and reactivity of an organic molecule? - answerThe molecule's shape and composition Why do atoms form bonds to other atoms? What is the driving force for atoms to join together? - answerenergetic stability What does energetically stable mean? - answerAtoms of elements are more stable when th...

TEST BANK FOR ORGANIC CHEMISTRY WITH BIOLOGICAL TOPICS 6th EDITION ISBN : 9781260325294 ALL CHAPTERS INCLUDED. Chapter 1 1 MULTIPLE CHOICE QUESTIONS Topic: Atomic Orbitals 1. In quantum mechanics a node (nodal surface or plane) is: A) a place where Ψ is negative. B) a place where Ψ is positive. C) a place where Ψ = 0. D) a place where Ψ 2 is large. E) a place where Ψ 2 is negative. Ans: C Topic: Atomic Orbitals, Molecular Orbitals 2. When the 1s orbitals of two hydroge...

The Octet Rule - correct answer Main group elements (groups 1, 2, and 13-17) tend to form bonds so that they have an "octet" of electrons (8 electrons) Noble gases - correct answer • Noble gases usually exist as single atoms and do not tend to form compounds; this is because they have completely filled orbitals. • Noble gases have filled s and p orbitals in the outermost shell Valence electrons - correct ans...

1. Question: Calculate the lattice energy of NaBr(s), given the following thermochemical equations, where ΔIE and ΔEA are ionization energy and electron affinity, respectively. 2. Question: In which case is the bond polarity incorrect? 3. Question: The phosphorus atom in PCl3 would be expected to have a 4. Question: Which of the following bonds would be the most polar without being considered ionic? 5. Question: Calculate the standard enthalpy of formation (ΔHformation) for LiCl(s) given ...

Molecule - Answer neutral collection of atoms held together by covalent bonds. Lewis Structures - Answer dot representations of covalent bonds in molecules, valence shell electrons of an atom are represented as dots. Kekuli Structures - Answer line-bond structures, two-electron covalent bond is represented by a line. Lone Pair Electrons - Answer valence shell electron pairs not used for bonding. Valence Bond Theory - Answer bonding theory that describes a covalent bond as r...

CHEM120 Week 2 Concepts: Understanding the Structure and Naming of Molecules – Download To Score An A+ Introduction Building on the fundamentals of covalent bonding, we will be looking deeper into the structures and behaviors of molecular compounds. We will be exploring how covalent bonding is involved in the structure of these molecules and determines how they interact with the world around them. What shape would you expect the compound Hydrogen Fluoride to have? o Pyramidal o Tetrahedral o L...