PDF-Hardness and softness of ions

5 3 34 3 2 3HgAg 2 Ni 2 2 2 r 4 Pb nTl 42 S4 45 SoftestCations with some outershell electronsCations with many outershell electronsAni 6 3 P5S6 4 2 3 Ti 4 Cations n. brPage 1br F57577lici tat ions F57577lici tat ions F57577lici tat ions F57577lici tat ions F57577lici tat ions F57577lici tat ions F57577lici tat ions F57577lici tat ions By Miss . B. uicke. OC14. Use cobalt chloride paper or anhydrous copper sulfate to test for water.  . OC30. Conduct a qualitative experiment to detect the presence of dissolved solids in water samples, and test water for hardness (soap test). The ions are arranged in a lattice. There is attractive electrostatic forces between the ions which are very strong e.g. sodium chloride ionic lattices. . Give two properties of giant ionic structures. . Names of Common Polyatomic Ions. . Ion Name Ion Name. . NH. 4. . +. ammonium. . CO. 3 . 2-. carbonate. *NO. 2. . -. *nitrite . HCO. 3. . -. To write the electron configuration of an ion formed by a main group element:. Write the configuration for the atom.. Add or remove the appropriate number of electrons.. Na: 1. s. 2. 2. s. 2. 2. SNC2D. Polyatomic Ions. Polyatomic ions are groups of atoms that tend to stay together and carry an overall ionic charge. The ion is typically held together with covalent bonds. The polyatomic ion is capable of bonding with other ions. What is Hardness. ?. Hardness is a mineral’s ability to scratch something or be scratched. Some minerals are extremely soft and can be scratched by your fingernail and some minerals can scratch glass or metal.. How elements become charged. How elements become charged. ION – A charged atom. All elements on the periodic table are NEUTRAL because they have the same number of . protons (+) and electrons (-). Message Map. Kleenex brand, America’s . Softest Tissue. *, knows that once one experiences the softness of Kleenex brand tissues, they will be eager to share it with other cold and flu sufferers, friends and strangers alike, as a way to show they care. . MACROSCOPIC SCALE. Elements combine to make compounds.. ATOMIC SCALE. Atoms combine to make molecules, or extended structures.. What we’ll cover…. Compound Formulas. Ions. Monatomic. Polyatomic. Ionic Compounds. 2. , is used in the processing and bleaching of pulp from wood fibers and recycled cardboard. .. Learning . Goal . Write the name and formula for an ionic compound containing a polyatomic ion.. Polyatomic Ions. May 28, 2013. Confidentiality Label. 1. Topics. May 28, 2013. Confidentiality Label. 2. Non-Target Screening vs. Targeted Quantitation. Targeted Quantitation. LC/QQQ. Benefits:. Most Sensitive Technique. Polyatomic Ions . Tightly bound groups of atoms that behave as a unit and carry a charge.. Ammonium . NH. 4. +. Cyanide. CN. -. Sulfite . SO. 3. 2-. Examples:. Common Polyatomic Ions. with a -1 charge. Presented by Willrich Precision. Ph 866-945-5742 / sales@Willrich.com. Created by Walter . Wardzala. , Major Instrument Sales Specialist. . Materials Testing. Tensile. Charpy. Impact. Fatigue. Ductility.