Organizing the Elements - 5th Period by Shawn Gray https://padlet.com/sciencegray/vtcq2oh1dmei How did the periodic table come to be? en-us 2017-11-07 17:30:49 UTC 2025-11-02 21:41:12 UTC hello@padlet.com Who is Dmitri Mendeleev? https://padlet.com/sciencegray/vtcq2oh1dmei/wish/204505171 Russian Chemist and teacher, who published a table of elements. ]]> 2017-11-07 18:14:08 UTC https://padlet.com/sciencegray/vtcq2oh1dmei/wish/204505171 Where do we find metalloids on the periodic table? https://padlet.com/sciencegray/vtcq2oh1dmei/wish/204505219 They are atomic numbers 5, 14, 32, 33, 51, 52, and 85. They are in a diagonal line in the p block.]]> 2017-11-07 18:14:12 UTC https://padlet.com/sciencegray/vtcq2oh1dmei/wish/204505219 How does the number of metals compare to the total number of elements? https://padlet.com/sciencegray/vtcq2oh1dmei/wish/204505397 Most elements are metals, which is around 80% of the periodic table.]]> 2017-11-07 18:14:26 UTC https://padlet.com/sciencegray/vtcq2oh1dmei/wish/204505397 Why do scientists need to be able to organize the elements https://padlet.com/sciencegray/vtcq2oh1dmei/wish/204505435 They were discovering a lot of elements exist and they needed a way to keep them straight and to logically organize them]]> 2017-11-07 18:14:29 UTC https://padlet.com/sciencegray/vtcq2oh1dmei/wish/204505435 What problem is there with Organzing elements by increasing atomic mass? https://padlet.com/sciencegray/vtcq2oh1dmei/wish/204505759 If you order it in atomic mass the elements don’t match with the (properties of) elements around it.]]> 2017-11-07 18:15:00 UTC https://padlet.com/sciencegray/vtcq2oh1dmei/wish/204505759 Why did scientists need a way to organize the elements? https://padlet.com/sciencegray/vtcq2oh1dmei/wish/204506253 They didn’t know the limit on how many elements there are. They also need a logical way to organize the elements.]]> 2017-11-07 18:15:48 UTC https://padlet.com/sciencegray/vtcq2oh1dmei/wish/204506253 How did early scientists group elements https://padlet.com/sciencegray/vtcq2oh1dmei/wish/204506319 They used the properties especially the chemical ]]> 2017-11-07 18:15:53 UTC https://padlet.com/sciencegray/vtcq2oh1dmei/wish/204506319 Discribe nonmetals https://padlet.com/sciencegray/vtcq2oh1dmei/wish/204506461 Poor conductors of heat and electric current. Solid nonmetals tend to be brittle. ]]> 2017-11-07 18:16:07 UTC https://padlet.com/sciencegray/vtcq2oh1dmei/wish/204506461 Where do we find metals on the periodic table https://padlet.com/sciencegray/vtcq2oh1dmei/wish/204506625 Metals are found on the left side of the metalloids.]]> 2017-11-07 18:16:21 UTC https://padlet.com/sciencegray/vtcq2oh1dmei/wish/204506625 What were Dobereiners triads https://padlet.com/sciencegray/vtcq2oh1dmei/wish/204506659 A set of 3 elements with similar properties ]]> 2017-11-07 18:16:24 UTC https://padlet.com/sciencegray/vtcq2oh1dmei/wish/204506659 Describe the process he used to create his table. https://padlet.com/sciencegray/vtcq2oh1dmei/wish/204506782 Mendeleev developed his table while working on a textbook for his students. he needed a way to show the relationships amoung more than sixty elements. he wrote the properties of each element on a separate notecard, which allowed him to arrange them, until he found the right organization. ]]> 2017-11-07 18:16:35 UTC https://padlet.com/sciencegray/vtcq2oh1dmei/wish/204506782 Give an example of a triad https://padlet.com/sciencegray/vtcq2oh1dmei/wish/204507174 Chlorine bromine iodine]]> 2017-11-07 18:17:11 UTC https://padlet.com/sciencegray/vtcq2oh1dmei/wish/204507174 Which elements are metalloids (list them all)". https://padlet.com/sciencegray/vtcq2oh1dmei/wish/204507326 Boron, Silicone, Germanium, Arsenic, Antimony, Tellurium, Astatine.]]> 2017-11-07 18:17:24 UTC https://padlet.com/sciencegray/vtcq2oh1dmei/wish/204507326 How did Mosley reorganize the periodic table? https://padlet.com/sciencegray/vtcq2oh1dmei/wish/204507622 He put the elements in order of increasing atomic number.]]> 2017-11-07 18:17:51 UTC https://padlet.com/sciencegray/vtcq2oh1dmei/wish/204507622 What are some properties of metals https://padlet.com/sciencegray/vtcq2oh1dmei/wish/204507668 Metals are good conductors of heat and electric currents, and they have high luster and sheen. Most metals are malleable and ductile as well. ]]> 2017-11-07 18:17:55 UTC https://padlet.com/sciencegray/vtcq2oh1dmei/wish/204507668 What was the problem of organizing elements as triads https://padlet.com/sciencegray/vtcq2oh1dmei/wish/204507724 Not all known elements could be grouped into triads]]> 2017-11-07 18:18:00 UTC https://padlet.com/sciencegray/vtcq2oh1dmei/wish/204507724 How did the early scientist group elements? https://padlet.com/sciencegray/vtcq2oh1dmei/wish/204507829 Chemists used the properties to sort the elements into groups.]]> 2017-11-07 18:18:10 UTC https://padlet.com/sciencegray/vtcq2oh1dmei/wish/204507829 WHOMST was Dmitri Mendeleev??? https://padlet.com/sciencegray/vtcq2oh1dmei/wish/204507831 He was
>The real OG
>Russian chemist and teacher
>published a periodic table in 1896 
>hopefully a communist]]> 2017-11-07 18:18:10 UTC https://padlet.com/sciencegray/vtcq2oh1dmei/wish/204507831 How are these different from metals? https://padlet.com/sciencegray/vtcq2oh1dmei/wish/204507890 Most nonmetals are gases at room temperature. Poor conductors of heat and electric current ]]> 2017-11-07 18:18:16 UTC https://padlet.com/sciencegray/vtcq2oh1dmei/wish/204507890 What pattern did Dobereiner notice in his triads https://padlet.com/sciencegray/vtcq2oh1dmei/wish/204508033 What elementin  each triad tended to have properties with values that fell midway between those of the other two elements]]> 2017-11-07 18:18:32 UTC https://padlet.com/sciencegray/vtcq2oh1dmei/wish/204508033 What is periodic law? https://padlet.com/sciencegray/vtcq2oh1dmei/wish/204508041 When the elements are arranged in order of increasing atomic number there is a periodic repetition of their physical and chemical properties ]]> 2017-11-07 18:18:32 UTC https://padlet.com/sciencegray/vtcq2oh1dmei/wish/204508041 Nonmetals https://padlet.com/sciencegray/vtcq2oh1dmei/wish/204508219 Where are Nonmetals Found.
-right of Metalloids, upper right corner, as well as Hydrogen

How are these different
-they have opposite properties of metals
-they are poor conductors or heat and electricity-carbon is an exception 
-metals are malleable and nonmetals tend to be brittle or naturally occur as gas

]]> 2017-11-07 18:18:46 UTC https://padlet.com/sciencegray/vtcq2oh1dmei/wish/204508219 What problem is there with organizing elements by increasing atomic mass? https://padlet.com/sciencegray/vtcq2oh1dmei/wish/204508407 The problem was using the atomic mass to organize the periodic table because it didn’t match up to the atomic number and certain elements weren’t in the right order]]> 2017-11-07 18:19:02 UTC https://padlet.com/sciencegray/vtcq2oh1dmei/wish/204508407 What physical state are metals at room temperature? What is the exception? https://padlet.com/sciencegray/vtcq2oh1dmei/wish/204508728 All metals are solid at room temperature, but the exception is Mercury, which is a liquid at room temperature.]]> 2017-11-07 18:19:33 UTC https://padlet.com/sciencegray/vtcq2oh1dmei/wish/204508728 What are Dobereiner’s triads? https://padlet.com/sciencegray/vtcq2oh1dmei/wish/204508763 Groups of three elements with similar properties]]> 2017-11-07 18:19:37 UTC https://padlet.com/sciencegray/vtcq2oh1dmei/wish/204508763 How do properties of metalloids compare to metals and non metals? https://padlet.com/sciencegray/vtcq2oh1dmei/wish/204509052 Has properties similar to both, its behavior is controlled by changing the conditions. Examples: computer chips and glass have metalloids in them.]]> 2017-11-07 18:20:07 UTC https://padlet.com/sciencegray/vtcq2oh1dmei/wish/204509052 How does IUPAC organize the coloumns on the periodic table? https://padlet.com/sciencegray/vtcq2oh1dmei/wish/204509076 The columns are grouped into three broad classes based on their general properties, three classes of elements are, metals, nonmetals, and metalloids]]> 2017-11-07 18:20:10 UTC https://padlet.com/sciencegray/vtcq2oh1dmei/wish/204509076 Give an example of a triad. https://padlet.com/sciencegray/vtcq2oh1dmei/wish/204509603 Chlorine, Bromine, Iodine]]> 2017-11-07 18:21:04 UTC https://padlet.com/sciencegray/vtcq2oh1dmei/wish/204509603 Where do we find nonmetals on the periodic table? https://padlet.com/sciencegray/vtcq2oh1dmei/wish/204509975 Upper-right corner except hydrogen.]]> 2017-11-07 18:21:37 UTC https://padlet.com/sciencegray/vtcq2oh1dmei/wish/204509975 How was his table organized https://padlet.com/sciencegray/vtcq2oh1dmei/wish/204510205 He ordered his periodic table in increasing Atomic Mass. ]]> 2017-11-07 18:21:59 UTC https://padlet.com/sciencegray/vtcq2oh1dmei/wish/204510205 What was the problem with using triads to categorize elements? https://padlet.com/sciencegray/vtcq2oh1dmei/wish/204510349 Not all of the elements could not be grouped in to triads.]]> 2017-11-07 18:22:13 UTC https://padlet.com/sciencegray/vtcq2oh1dmei/wish/204510349 How did Mosley re-organize the periodic table https://padlet.com/sciencegray/vtcq2oh1dmei/wish/204510416 He used increasing atomic number to re-organize the periodic table.]]> 2017-11-07 18:22:19 UTC https://padlet.com/sciencegray/vtcq2oh1dmei/wish/204510416 How do elements change as you move from left to right within a row on the periodic table? https://padlet.com/sciencegray/vtcq2oh1dmei/wish/204510438 The properties of elements become less metallic and more nonmetallic ]]> 2017-11-07 18:22:21 UTC https://padlet.com/sciencegray/vtcq2oh1dmei/wish/204510438 How do properties depend on conditions? https://padlet.com/sciencegray/vtcq2oh1dmei/wish/204510887 The conditions can change the properties that the metalloids possess for example, being a conductor of electric current.]]> 2017-11-07 18:23:07 UTC https://padlet.com/sciencegray/vtcq2oh1dmei/wish/204510887 But wait kids, how was the Table organized? https://padlet.com/sciencegray/vtcq2oh1dmei/wish/204510943 He arranged the elements in his table by order of increasing atomic mass, my dudes.]]> 2017-11-07 18:23:13 UTC https://padlet.com/sciencegray/vtcq2oh1dmei/wish/204510943 What was significant about the spaces on his tables? https://padlet.com/sciencegray/vtcq2oh1dmei/wish/204511269 He left spaces cause he figured there would be other elements found later. ]]> 2017-11-07 18:23:47 UTC https://padlet.com/sciencegray/vtcq2oh1dmei/wish/204511269 What pattern did Dobereiner notice in his triads? https://padlet.com/sciencegray/vtcq2oh1dmei/wish/204511458 One element in each triad tended to have properties with values that fell midway between those of the other two elements.]]> 2017-11-07 18:24:05 UTC https://padlet.com/sciencegray/vtcq2oh1dmei/wish/204511458 What is periodic law? https://padlet.com/sciencegray/vtcq2oh1dmei/wish/204511685 It is the periodic repetion of physical and chemical traits when using increasing atomic number to organize the periodic table.]]> 2017-11-07 18:24:26 UTC https://padlet.com/sciencegray/vtcq2oh1dmei/wish/204511685 How did the real OG chemist create the table though? https://padlet.com/sciencegray/vtcq2oh1dmei/wish/204512453 He wrote down on notecards the properties of each element that organized them into groups based on repeating properties. Sounds suspiciously familiar]]> 2017-11-07 18:25:42 UTC https://padlet.com/sciencegray/vtcq2oh1dmei/wish/204512453 How does IUPAC organize the columns on the periodic table? https://padlet.com/sciencegray/vtcq2oh1dmei/wish/204513309 It organizes the columns into three classes of elements and they’re metals, non-metals, and metalloids]]> 2017-11-07 18:27:19 UTC https://padlet.com/sciencegray/vtcq2oh1dmei/wish/204513309 But what about them blanks though?? Why they s i g n i f i c a n t ? https://padlet.com/sciencegray/vtcq2oh1dmei/wish/204513698 Because Mendeleev could predict elements that would fill them. It was pretty radical.]]> 2017-11-07 18:27:57 UTC https://padlet.com/sciencegray/vtcq2oh1dmei/wish/204513698 How do elements change as you move from left to right within a row on the periodic table? https://padlet.com/sciencegray/vtcq2oh1dmei/wish/204514063 The properties of elements become less metallic and more nonmetallic as you move from left to right.]]> 2017-11-07 18:28:35 UTC https://padlet.com/sciencegray/vtcq2oh1dmei/wish/204514063