https://padlet.com/mbayonama/h6ck5tl3lqll Remake because of the situation in the Class en-us 2018-10-03 23:15:19 UTC 2018-10-05 00:42:40 UTC hello@padlet.com mbayonama https://padlet.com/mbayonama/h6ck5tl3lqll/wish/288913829 There are 100 elements, each one with its unique properties. A periodic table is a table arranged into rows and columns that shows the elements and their properties]]> 2018-10-03 23:15:54 UTC https://padlet.com/mbayonama/h6ck5tl3lqll/wish/288913829 mbayonama https://padlet.com/mbayonama/h6ck5tl3lqll/wish/288914271

A chemist and teacher Dimitri Mendeleev developed a table in 1869

He studied the physical properties of the elements

Mendeleev arranged the groups into rows of increasing atomic mass.

Elements with similar properties were in the same column

]]> 2018-10-03 23:19:10 UTC https://padlet.com/mbayonama/h6ck5tl3lqll/wish/288914271 mbayonama https://padlet.com/mbayonama/h6ck5tl3lqll/wish/288916137 In the periodic table, Mendeleev noticed that there are properties that repeat patterns, like the melting and boiling point.]]> 2018-10-03 23:33:31 UTC https://padlet.com/mbayonama/h6ck5tl3lqll/wish/288916137 mbayonama https://padlet.com/mbayonama/h6ck5tl3lqll/wish/288916852 Mendeleev's table had large gaps. This was because he predicted that new elements were going to be discovered. He also predicted that the properties of the new elements were going to be similar to the elements that were right there. ]]> 2018-10-03 23:39:21 UTC https://padlet.com/mbayonama/h6ck5tl3lqll/wish/288916852 mbayonama https://padlet.com/mbayonama/h6ck5tl3lqll/wish/288917800 The problem in Mendeleev's table was that some elements were out of place. The solution was the periodic table we use today.]]> 2018-10-03 23:47:02 UTC https://padlet.com/mbayonama/h6ck5tl3lqll/wish/288917800 mbayonama https://padlet.com/mbayonama/h6ck5tl3lqll/wish/288921025 Mendeleev's table listed the table according to the elements' atomic mass. Instead, in the early 1900s, a scientist named Henry Moseley, developed the table by arranging the elements by their atomic number.]]> 2018-10-04 00:14:34 UTC https://padlet.com/mbayonama/h6ck5tl3lqll/wish/288921025 mbayonama https://padlet.com/mbayonama/h6ck5tl3lqll/wish/288921939 An element key shows information about the element. It tells you as in the image says the name of the element, the atomic number, the atomic mass, the symbol and the state of matter.]]> 2018-10-04 00:21:57 UTC https://padlet.com/mbayonama/h6ck5tl3lqll/wish/288921939 mbayonama https://padlet.com/mbayonama/h6ck5tl3lqll/wish/288923042 A group is a column on the periodic table. The elements in a group react similar to the other elements in their group. Their are patterns in the physical properties of a group.]]> 2018-10-04 00:29:10 UTC https://padlet.com/mbayonama/h6ck5tl3lqll/wish/288923042 mbayonama https://padlet.com/mbayonama/h6ck5tl3lqll/wish/288923685 A period is a row in the periodic Table. The atomic number increases by 1 in a period. The physical and chemical properties also change.]]> 2018-10-04 00:33:54 UTC https://padlet.com/mbayonama/h6ck5tl3lqll/wish/288923685 mbayonama https://padlet.com/mbayonama/h6ck5tl3lqll/wish/288924227 Metals are the most common group in an Element Table. They are usually on the beginning and middle of the table. They all are shiny and conduct electricity and thermal energy.]]> 2018-10-04 00:37:56 UTC https://padlet.com/mbayonama/h6ck5tl3lqll/wish/288924227 mbayonama https://padlet.com/mbayonama/h6ck5tl3lqll/wish/288925124 Nonmetals (except hydrogen) are located in the right side of the periodic table. Nonmetals do not conduct thermal energy or electricity. Most of them are gases]]> 2018-10-04 00:44:18 UTC https://padlet.com/mbayonama/h6ck5tl3lqll/wish/288925124 mbayonama https://padlet.com/mbayonama/h6ck5tl3lqll/wish/288926232 They use it in order to predict and understand elements' properties. ]]> 2018-10-04 00:51:28 UTC https://padlet.com/mbayonama/h6ck5tl3lqll/wish/288926232 esojo https://padlet.com/mbayonama/h6ck5tl3lqll/wish/289354919 https://www.youtube.com/watch?v=5-_aBTNavdQ]]> 2018-10-04 19:18:56 UTC https://padlet.com/mbayonama/h6ck5tl3lqll/wish/289354919