Dot Formula November 8‚ 2013 I. Learning Objectives At the end of the sessions‚ the students of III- 15‚ and III – 10 must be able to: 1. Students will be able to interpret and draw Lewis dot diagrams for individual atoms and both covalent and ionic compounds. II. Subject Matter A. Topic: Chemical Bonding B. References 1. Department of Education‚ Culture and Sports. (1991). Science and Technology III. Quezon City: Book Media Press‚ pp. 273. 2. Estrella‚ Mendoza E. Chemistry.2003. Phoenix
Premium Atom Covalent bond Chemical bond
their thanks to the patron God of a city for success in battle. The Greeks developed three architectural systems that wound up playing a large role in Neoclassical architecture. The systems‚ called orders‚ each have their own distinctive detailing and proportions. The Greek orders are: Dionic‚ Ionic‚ and Corinthian. These are all different styles of columns‚ which during this time period provided most of the structures support. However‚ later on in Neoclassicism ‚ columns were used primarily for
Premium Doric order Ionic order Corinthian order
Lab Techniques & Measurements Pre Lab Questions: (4pts) 1. What will you learn after completing the lab? -The experiment will introduce different level of precision and measuring to the appropriate decimal place and will be familiar with measurements and weight. 2. Write the symbols and equation used to make a dilute solution from concentrated or stock solution. - The concentration of substance is described as molarity and this can be expressed as – Molarity
Premium Temperature Fahrenheit Boiling point
question. Which type of compound usually has higher melting points: ionic compounds or covalent compounds? What is the reason for this difference in melting points? (3 points) Link: http://misterguch.brinkster.net/covalentcompounds.html Answer: Ionic compounds have a higher melting point the heat needed to break down the bonds between the compounds is much higher than not needing to break down any bonds at all. Do ionic compounds conduct electricity as: (3 points) Link: http://antoine.frostburg
Free Ionic bond Chemical bond Covalent bond
attractive force between the atoms ... a chemical bond. The two extreme cases of chemical bonds are: Covalent Bonds Covalent chemical bonds involve the sharing of a pair of valence electrons by two atoms‚ in contrast to the transfer of electrons in ionic bonds. Such bonds lead to stable molecules if they share electrons in such a way as to create a noble gas configuration for each atom. Hydrogen gas forms the simplest covalent bond in the diatomic hydrogen molecule. The halogens such as chlorine also
Free Atom Electron Chemical bond
energy of the aggregate is ______than that of the separated atoms. ____________ – energy required to break a chemical bond Bonding involves ________________. 2 Chemical Bonds‚ cont. In general‚ there are three types of chemical bonds: I. Ionic bond: Transfer of electrons from one atom to another. Seen primarily in M + NM. Bond is an electrostatic attraction of of a _______for an ______. II. Covalent bond: Results from a ________ of outermost electrons. A. __________covalent: ______
Premium Covalent bond Atom Chemical bond
Non-conductor | Non-conductor | Conducts electricity in solution | Non-Conductor | Classification | Ionic bond | Non-polar molecular solid | Covalent bond | Polar molecular solid | Ionic bond | Metallic bond | Calculations No calculations were required in this experiment. Discussion The flame test was undertaken
Premium Metal Ion Ionic bond
electron configuration in the ground state? (a) Rb+ and Cs+ (b) Ba2+ and I– (c) Se2– and I– (d) Fe2+ and Fe3+ 3. (5 points) List the elements Na‚ Ca‚ Rb‚ Cl‚ He in order of decreasing first ionization energy. (a) He > Cl > Ca > Na > Rb (b) He > Na > Ca > Cl > Rb (c) He > Na > Cl > Ca > Rb (d) Rb > Ca > Cl > Na > He 4. (5 points) Which ionic compound would be expected to have the highest lattice energy? (a) NaCl (b) MgO (c) AlF3 (d) Al2O3 5. (5 points) Which element‚ indicated by letter on the periodic
Premium Periodic table Trigraph Pressure
electrical/heat conductors) Bonding in solids: Ionic solids Ionic solid crystals (e.g. NaCl) are held together by the Coulomb attractive interaction between ions with opposite sign (ionic bonding) e2 b U = −αk + m r r (α = 1.7476 for Na +Cl − ) (m ~ 10) k = 1 / 4πε 0 Madelung constant Ionic cohesive energy: 11 U0 = min U (r ) = −αk 1 − m r0 mb r0 = αk 1 m −1 Bonding in solids: Ionic solids Properties of ionic solid crystals: • relatively stable and hard
Premium Solid Electron Metal
famous English architect said‚ “was ready to seize with some degree of success‚ the beautiful spirit of antiquity‚” which is quintessentially seen in the Exam Hall. The exterior of the Exam Hall displays classical semblances of the Roman Corinthian Order while the interior is decorated using a classical color pallet and style. This paper will explore the reasons why Trinity College Dublin’s Exam Hall‚ being a neo-classical building‚ can be measured ‘classical’. The Exam Hall’s architectural structure
Premium Doric order Ionic order Neoclassicism