Why do halogens exist as diatomic molecules

Halogens (6) The Halogens are a generally nasty bunch. Think toxic choking fumes. But in compounds with the similarly strong-willed alkali earths, ... The ffBXB calculated energies show a remarkable one-to-one linear relationship to explicit BXB energies determined from an experimental DNA junction system. Alkaline earth metals are the 2nd column on the table. All of them are silvery metals, have 2 extra electrons, react with halogens (scroll down some) to make ... The table below shows the boiling points and properties of some of the elements in Group 7 of the periodic table. Element. Boiling point in °C. Colour in ... This volume is arranged into two sections: halogens and noble gases. Each one begins with an introduction to its family and is followed by chapters devoted to ... Feb 7, 2016 ... These five toxic, non-metallic elements make up Group 17 of the periodic table and consist of ... 1.fluorine (F) ... 2.chlorine (Cl) ... 3.bromine (Br) ... To complete this quiz, you will need access to a periodic table. Select the best answer from the choices. Good luck. ... halogens according to their position in the periodic table belong to Group VIIA, which means they have seven valence electrons and need an additional ... Other groups with specific names are the pnictogens (group 15), chalcogens (group 16), halogens (group 17), and the noble gases (group 18, also known as inert ... Halogens on the Right ... In the second column from the right side of the periodic table, you will find Group Seventeen (Group XVII). This column is the home of ...