The elements in each period of these groups are very similar in their chemical and physical properties. List of elements of the periodic table by group and period including the chemical symbol and the atomic number. What class of elements make up the groups on the right side of the periodic table? This keeps them from making compounds easily. List of Elements by Group and Period. Halogens can also be referred to as group 7A, group 17, or group VIIA elements. Group 17 includes the halogens and are five non-metallic elements. How many electrons are there in the outer shell of a bromine atom? They are pulled out in order to make the table itself fit more easily onto a single page. 1. Mercury (Hg) and bromine (Br) are the only elements in the periodic table that are liquids at room temperature. They are nonreactive, mono-atomic elements with extremely low boiling points. You can print the list of elements by hitting the print button below. STP Occurrence Description 1 Hydrogen H 1 1 s Gas Primordial Non-metal 2 Helium He 18 1 s Gas Primordial Noble gas 3 Lithium Li 1 2 s Solid Primordial Alkali metal 4 Beryllium Be 2 2 s … Periods 6 and 7 have 32 elements because the two bottom rows that are separated from the rest of the table belong to those periods. Properties Halogens Share. To list the elements order by group and period, click on the table headers. Resemblance with alkali metals:- 2. The elements in group 7 are called the halogens. Group 7 is on the right-hand side of the periodic table, next to group 0 The halogens show trends in their physical and chemical properties . Here are some properties of hydrogen. How did group 14 of elements get his name? All the Group 14 elements has 4 electrons in its outer energy level. Each of the 13 elements has their own unique physical and chemical properties. Fluorine is an element, in group 7 of the periodic table. Name the element: period 3, group 16. Radon, helium, xenon, neon, krypton and argon are eight noble gases. The Group 8 elements usually have the electron configuration (n-1)d 6 ns 2, the Group 9 elements usually have the electron configuration (n-1)d 7 ns 2, and the Group 10 elements usually have the electron configuration (n-1)d 8 ns 2. 1. Name the element: group 18, period 5. Electronic configuration: Hydrogen like alkali metals has one electron in it's valence shell. Hydrogen. Radium. Name the element: period 7, group 2. They have an oxidation number of 0. 7. A group is a vertical column of the periodic table, based on the organization of … 3-Sylow: elementary abelian group:E9 (order 9) 5-Sylow: cyclic group:Z5 (order 5) 7-Sylow: cyclic group:Z7 (order 7) Hall subgroups: Other than the whole group, the trivial subgroup, and the Sylow subgroups, there are -Hall subgroups (of order 144) and -Hall subgroups (of order 720), the latter being S6 in S7. 6. Xenon. Sulfur. All mean the same thing. 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