https://padlet.com/2018cesar00/itgouwueekuk en-us 2016-04-05 17:10:14 UTC 2024-07-15 18:37:35 UTC hello@padlet.com 2018cesar00 https://padlet.com/2018cesar00/itgouwueekuk/wish/104188514 In chemistry, a group (also known as a family) is a column of elements in the periodic tableof the chemical elements. There are 18 numbered groups in the periodic table, but the f-block columns (between groups 2 and 3) are not numbered.]]> 2016-04-05 17:11:34 UTC https://padlet.com/2018cesar00/itgouwueekuk/wish/104188514 2018cesar00 https://padlet.com/2018cesar00/itgouwueekuk/wish/104188730  A period is the name given to a horizontal row of the periodic table. The periodic table has seven periods. Period 1 contains only two elements: hydrogen and helium.]]> 2016-04-05 17:12:17 UTC https://padlet.com/2018cesar00/itgouwueekuk/wish/104188730 2018cesar00 https://padlet.com/2018cesar00/itgouwueekuk/wish/104188812 This group is also known as the oxygen family. It consists of the elements oxygen (O), sulfur (S), selenium (Se), tellurium (Te), and the radioactive element polonium (Po). The chemically uncharacterized synthetic element livermorium (Lv) is predicted to be a chalcogen as well.]]> 2016-04-05 17:12:31 UTC https://padlet.com/2018cesar00/itgouwueekuk/wish/104188812 2018cesar00 https://padlet.com/2018cesar00/itgouwueekuk/wish/104188934 2016-04-05 17:12:54 UTC https://padlet.com/2018cesar00/itgouwueekuk/wish/104188934 2018cesar00 https://padlet.com/2018cesar00/itgouwueekuk/wish/104188985 The carbon group is a periodic table groupconsisting of carbon (C), silicon (Si), germanium (Ge), tin (Sn), lead (Pb), and flerovium (Fl). In modern IUPAC notation, it is called Group 14.]]> 2016-04-05 17:13:04 UTC https://padlet.com/2018cesar00/itgouwueekuk/wish/104188985 2018cesar00 https://padlet.com/2018cesar00/itgouwueekuk/wish/104189077 any of the elements fluorine, chlorine, bromine, iodine, and astatine, occupying group VIIA (17) of the periodic table. They are reactive nonmetallic elements that form strongly acidic compounds with hydrogen, from which simple salts can be made.

]]> 2016-04-05 17:13:22 UTC https://padlet.com/2018cesar00/itgouwueekuk/wish/104189077 2018cesar00 https://padlet.com/2018cesar00/itgouwueekuk/wish/104189263 the chemical element of atomic number 7, a colorless, odorless unreactive gas that forms about 78 percent of the earth's atmosphere. Liquid nitrogen (made by distilling liquid air) boils at 77.4 kelvins (-195.8°C) and is used as a coolant.]]> 2016-04-05 17:13:55 UTC https://padlet.com/2018cesar00/itgouwueekuk/wish/104189263 2018cesar00 https://padlet.com/2018cesar00/itgouwueekuk/wish/104412856 2016-04-06 16:55:52 UTC https://padlet.com/2018cesar00/itgouwueekuk/wish/104412856 2018cesar00 https://padlet.com/2018cesar00/itgouwueekuk/wish/104413136 any of the set of metallic elements occupying a central block (Groups IVB–VIII, IB, and IIB, or 4–12) in the periodic table, e.g., iron, manganese, chromium, and copper. Chemically they show variable valence and a strong tendency to form coordination compounds, and many of their compounds are colored.]]> 2016-04-06 16:56:50 UTC https://padlet.com/2018cesar00/itgouwueekuk/wish/104413136 2018cesar00 https://padlet.com/2018cesar00/itgouwueekuk/wish/104413763 Actinide Series of Metals. There are two rows under the periodic table: the lanthanide andactinide series.]]> 2016-04-06 16:58:49 UTC https://padlet.com/2018cesar00/itgouwueekuk/wish/104413763 2018cesar00 https://padlet.com/2018cesar00/itgouwueekuk/wish/104414286 any of the elements beryllium, magnesium, calcium, strontium, barium, and radium, occupying Group IIA (2) of the periodic table. They are reactive, electropositive, divalent metals, and form basic oxides that react with water to form comparatively insoluble hydroxides.]]> 2016-04-06 17:00:30 UTC https://padlet.com/2018cesar00/itgouwueekuk/wish/104414286 2018cesar00 https://padlet.com/2018cesar00/itgouwueekuk/wish/104414531 the group of rare-earth metals often including lanthanum and sometimes yttrium — compare periodic table.]]> 2016-04-06 17:01:15 UTC https://padlet.com/2018cesar00/itgouwueekuk/wish/104414531 2018cesar00 https://padlet.com/2018cesar00/itgouwueekuk/wish/104414730 The boron group are the chemical elements in group 13 of the periodic table, comprisingboron (B), aluminium (Al), gallium (Ga), indium (In), thallium (Tl), and perhaps also the chemically uncharacterized ununtrium (Uut).]]> 2016-04-06 17:01:50 UTC https://padlet.com/2018cesar00/itgouwueekuk/wish/104414730