An element having the atomic number 17 will resemble which of the following elements having atomic number as given below?
The correct answer is: B
Explanation
The Group 7 elements are called the halogens. They are placed in the vertical column, second from the right, in the periodic table .
Chlorine (17), bromine(35) and iodine(53) are the first three of the Group 7 elements.
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