The elements in group 17 of the periodic table are all called halogens. All halogens have the same
2 answers:
<u>Answer:</u> They have same number of valence electrons.
<u>Explanation:</u>
Group 17 elements are known as halogens and these include fluorine (F), chlorine (Cl), Bromine (Br), iodine (I) and Astatine (At).
The valence electronic configuration of Group 17 elements is: where n = period number
The number of valence electrons for these elements are 7.
Hence, all the elements in Group 17 have same number of valence electrons.
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Answer:
A.
Explanation:
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In this case, for us to figure out the appropriate equilibrium expression, it will be firstly necessary for us to recall the law of conservation of mass which states that the equilibrium constant of an equilibrium chemical reaction is written by dividing the products and reactants and including the stoichiometric coefficients as exponents. In such a way, for the given reaction, we will have:
As N2O is the product whereas N2 and O2 are reactants; thus, the equilibrium expression will be A.
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