metals but more like nonmetals Identify groups and sections of the periodic table by group name and common properties. 3.02 notes Lesson 03.03: Periodic Trends Describe and explain the trends for effective nuclear charge‚ atomic radius‚ ionic radius‚ and ionization energy across a period and down a group. -Effective Nuclear Charge- the charge (from the nucleus) felt by the valence electrons after you have taken into account the number of
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------------------------------------------------- ------------------------------------------------- Introduction In a reaction where a slightly soluble ionic solid is dissolved in water‚ it ionizes into its respective ions. It signifies that equilibrium between the undissolved and dissolved ions in a saturated solution has been established when a precipitate forms. The solubility of the solid ionic compound Calcium Hydroxide was observed in this experiment. In the equilibrium reaction of Ca(OH)2 Ca(OH)2 (s)⇌Ca(aq)2++ OH(aq)-
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Study guide for exam 3 Chem 1212 Fall 2014 (chapters 3‚4‚ 14‚15) Chapter 3 Nomenclature ionic compounds‚ molecular compounds‚ simple organic compounds‚ hydrates‚ acids Know the names and charges of the polyatomic ions Calculation molecular weight mw Molar mass of compound Number particles = NA x n Mass % Determination of empirical formula and molecular formula Combustion analysis Balancing equations Chapter 4 Limiting reactant Mole to mole conversion from reaction stoichiometry Theoretical yield
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Research Paper-Outline TOPIC-Development of Greek Architecture: The Doric and Ionic Orders Intro: Hook‚ Thesis statement/explanation of topic Information/Background- -What was architecture like before this period? -What was is made out of? -Who influenced it? - What were some examples reflecting the old styles? -What happened to them? How were the ideas changing? -Who came up with new ideas? -What were the new ideas? -What influenced them? -How did they reflect the culture/society/worship
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gain electrons ▪ ▪ ionic compounds= compounds composed of cations and anions ▪ ionic compounds are electrically neutral ▪ anions and cations attract one another by means of electrostatic force ▪ ionic bonds= electrostatic forces that hold ions together in ionic compounds ▪ chemical formula=shows the kinds and numbers of atoms in the smallest representative unit of a substance. (ex: NaCl) ▪ formula unit= lowest whole number ratio of ions in an ionic compound. (In sodium chloride
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Metals and Non-metals Elements are divided mainly into two groups on the basis of physical and chemical properties – Metal and Non-metal. Metals: Part - I Physical Properties of Metals:- Hardness:- Most of the metals are hard‚ except alkali metals‚ such as sodium‚ potassium‚ lithium‚ etc. Sodium‚ potassium‚ lithium etc. are very soft metals‚ these can be cut using knife. Strength:- Most of the metals are strong and have high tensile strength. Because of this big structures are made using metals
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Topic 4 - Bonding 4.1 Ionic bonds 4.1.1 Ionic bond: +ve (cations) and -ve (anions) ions are attracted to each other and form a continuous ionic lattice 4.1.2 Group 1 metals form +1 ions‚ group 2 metals form +2 ions‚ metals in group 3 form +3 ions . Examples : Li+‚ Mg2+‚ Al3+. Greater ease of ionisation Li->Cs is due to the increased electron shielding of the nuclear attraction caused by additional inner shells of electrons. The easier atoms are to ionise‚ the more reactive they
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Lesson 03.01: History of the Periodic Table Explain how scientific observations led to the development of‚ and changes to‚ the periodic table. Russian chemist Dmitri Mendeleev set out to organize the 63 known elements according to their properties. Mendeleev wrote the name‚ mass‚ and chemical properties of each element on a separate card and arranged the cards by various properties‚ looking for trends and patterns. When he arranged the elements by increasing atomic mass‚ Mendeleev noticed that similar
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Worksheet #1: Introduction to Ionic Bonds The forces that hold matter together are called chemical bonds. There are four major types of bonds. We need to learn in detail about these bonds and how they influence the properties of matter. The four major types of bonds are: I. Ionic Bonds III. Metallic Bonds II. Covalent Bonds IV. Intermolecular (van der Waals) forces Ionic Bonds The ionic bond is formed by the attraction between oppositely charged ions. Ionic bonds are formed between
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Purpose The goal of the investigation was to observe if certain solutes would result in dissolving in different solvents. Solubility is what determines if a substance will dissolve in a certain solvent. The ionic solutes will dissolve into the polar solvents and the covalent solutes will dissolve into the non-polar solvents because the molecules of the solvents have a stronger force that will break apart the solute and dissolve it into the solvent. Procedure Small amount of the solutes‚ roughly
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