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Chemistry unit 1

16. Group VII Elements

QuestionAnswer
group VII elements Fluorine Chlorine Bromine Iodine Astatine
group VII elements are called Halogens
group VII elements contain 7 electrons in their outermost shell and have the ability to accept an electron to gain an octet of electrons and hence take part in ionic bonding
halogens have the ability to share electrons in covalent bonding with itself as well as with other non metals in the periodic table
one of the most unique features of the halogens is its ability to exist as diatomic molecules when it combines with itself
the element astatine has no stable or long lived isotopes, most physical properties of astatine have been predicted from theory and by extrapolation from the properties of other elements
molecular formula of Fluorine F2
State at 20° of fluorine gas
State at 20° of Chlorine gas
State at 20° of Bromine liquid
State at 20° of Iodine solid
colour of Iodine purple
colour of Chlorine green
colour of Bromine red-brown
colour of Fluorine pale yellow
molecular formula of chlorine CL2
Created by: 868TOYA
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