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Week 4
Introductory Chemistry
| Answer | Question |
|---|---|
| elements are arranged in order of increasing atomic number, those with similar chemical | What is the rational for the organization of the periodic table |
| Alkali Metals | What groups constitute the:IA |
| Calcogens | What groups constitute the:VIA |
| Halogens | What groups constitute the:VIIA |
| Alkaline Earth Metals | What groups constitute the:IIA |
| Noble Gases | What groups constitute the:VIIIA |
| most metallic character Group IA | Which groups on the periodic table possess the most metallic and nonmetallic character? |
| most metallic character Cs and Fr | Which elements are considered to possess the least metallic and the most metallic character? |
| Fluorine is the most reactive nonmetal and Cs is the most reactive metal. | Which individual elements on the periodic table are the most chemically reactive metal and nonmetal element? |
| nonmetals | What kind of element generally has a low melting and boiling point temperatures. |
| metals | What kind of element generally conducts electricity and heat well. |
| metalloid or semimetal | What kind of element increases its capacity to conduct electricity when heated. |
| The highest principle energy level s sub-energy level fills before the d orbitals of the next | It is generally true that all transition elements can have at most 2 valence electrons. |
| Atoms will gain or lose electrons to fill their outermost s and p sub-energy levels. Once filled the typical | How can the octet rule be used to predict the charge of an ion? |
| H2, N2, O2, F2, Cl2, Br2, I2 & At2 | List the elements that typically exist as diatomic molecules. (two atoms per molecule) |
| Br2 & Hg | What two elements exist as liquids at room temperature? |
| He, Ne, Ar, Kr, Rn, H2, N2, O2, F2, Cl2 | What elements exist as gases at room temperature in their natural form? |
| Silver | What element is the best electrical conductor on the periodic table? |
| Aluminum | What element is used in electrical transmission cable? |
| Tungsten and Uranium are the hardest | What are the hardest and most dense elements on the periodic table? |
| Silver, gold, platinum are often referred to as noble metals due to their stability in air. | Aside from the Noble gas elements, what elements are particularly notable for the nonreactive character? |
| A measure of the relative size of an atom. | Atomic Radius: |
| A measure of the relative size of an ion. | Ionic radius: |
| Minimum energy required to remove an electron to form | First Ionization Energy: |
| Energy required or released by addition of an electron to an | Electron Affinity: |
| Metals typically lose electrons in chemical reactions. The | Metallic Character: |
| When the elements are arranges in order of increasing relative mass, certain sets of properties recur periodically | What is periodic law |
| 1.Good Conductors 2.Malleability 3.Ductility 4.Shiny and tend to lose electrons when undergo chemical changes 5.Located the upper right side | Properties of Metals |
| 1. Occupy the upper right side 2.solids at room temp or gases 3.poor conductors of heat and electricity 4. Tend to gain electrons during chemical reactions | Characteristic of nonmetals |
| electrons not in the outermost principle shell | what are core electrons |
| the electrons in the outermost principle shell | What are Valence electrons |
Created by:
jadenite
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