Ionic radii - Study guides, Class notes & Summaries

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...

Which of the following has 8 valence electrons correct answer: b. Kr Which of the following does not have 8 valence electrons correct answer: a. Ca+ & Sr+ Lattic energy is correct answer: a. the energy required to convert a mole of ionic solid into its constituent ions in the gas phase In the ionic bond formation, the lattic energy of ions, _______ as the magnitude of the ion charges _______, and radii __________ correct answer: d. increases, increase, decrease The type of compou...

ACS Chemistry Final general Chem 1 Review 63 Questions with Verified Answers Density - CORRECT ANSWER mass / volume Conversion from celsius to kelvin - CORRECT ANSWER K = DegC + 273.15 Conversion from DegF to DegC - CORRECT ANSWER DegC = (5/9) (DegF - 32) Conversion from DegC to DegF - CORRECT ANSWER DegF = (9/5)(DegC) + 32 Intensive properties - CORRECT ANSWER Independent of amount of matter examined Extensive propertires - CORRECT ANSWER Dependent of amount of matter examined...

CHEM120 INTRODUCTION TO GENERAL, ORGANIC & BIOLOGICAL CHEMISTRY 2024| LAB REPORT FOR WEEK 2 SCORED A+ OL Lab 2: Periodic Table/Ionic and Covalent Bonds Learning Objectives ● Describe the structure and organization of the periodic table ● Classify elements of a family based on their location in the periodic table ● Distinguish metals from other element classes based on typical characteristics ● Use the flame color test to identify metals based on their position in the periodic ta...

A 0.5 mol sample of He(g) of Ne(g) are placed separately in two 10.0 L rigid containers at 25°C. Each container has a pinhole opening. Which of the gases, , will escape faster through the pinhole and why? (A) He(g) will escape faster because the (A) average speed than the Ne(g) atoms. (B) (B) Ne(g) will escape faster because its initial (C) pressure in the container is higher. (D) (C) Ne(g) will escape faster because the atoms have a higher average kinetic energy than the He(g) atoms. (D)...

ACS General Chemistry 1 studysheet Exam 124 Questions with Verified Answers 56=Mass # (A) 26= Atomic # (Z) Fe= symbol - CORRECT ANSWER 56= 26= Fe= Mass Number - CORRECT ANSWER Proton+ Neutrons Atomic Number - CORRECT ANSWER # of protons/electrons (equal in elemental form) - superscript - CORRECT ANSWER Add e- + superscript - CORRECT ANSWER subtract e- Isotope - CORRECT ANSWER Diff number of neutrons Isomer - CORRECT ANSWER two or more compounds with the same # of elemen...

ACS GEN CHEM 1 FINAL Exam 166 Questions with Verified Answers The physical material of the universe. It is anything that has mass and occupies space. - CORRECT ANSWER Matter is made up of relatively few elements. - CORRECT ANSWER Matter The smallest building block of matter. Smallest particle that retains the chemical property of the element (O, He, S). - CORRECT ANSWER Atom Each _______ is made of the same kind of atom - CORRECT ANSWER Element Combination of atoms held together i...

Material Properties - Answer 1. Mechanical and Physical 2. Thermal 3. Electrical 4. Optical 5. Magnetic 6. Deteriorative (chemical eg corrosion) Metals Types and Properties - Answer metallic bonding--> sea of electrons -strong, ductile -high thermal & electrical conductivity -opaque, reflective Polymers/Plastics Types & Properties - Answer Covalent bonding--> sharing of electrons -soft, ductile, low strength, low density -thermal & electrical insulators -optically transluc...

Honors Chemistry: Periodic Trends Guaranteed Success - Atomic Radius: ️ Half the distance between two identically bonded atoms. - Ionic Radius: ️ The radii of the most commonly found ion of the element. - First Ionization Energy: ️ The energy required to remove one electron from a neutral atom of an element. - Electron Affinity: ️ The energy change that occurs when an electron is acquired by a neutral atom. - Number of Valence Electrons: ️ The electrons that are ava...

General Chemistry II (CHEM113) ACS Final 289 Questions with Verified Answers The two states that are collectively known as the condensed states are _______. - CORRECT ANSWER solid and liquid The attractive forces that exist between all molecules and atoms, and are the forces that hold many solids and liquids together - CORRECT ANSWER intermolecular forces Intermolecular forces are only significant at _____. - CORRECT ANSWER short distances The state of a sample of matter is determine...