Three elements X ,Y , and Z belong to group 1 ,2 & 17 respectively.
a. Select the element which represents a halogen.
b. What type of bond is formed between X and Z.
c. Determine the valency of X and Z.
d. Determine the valence electrons of Y and Z.
e. What will be the formula of X with its chloride?
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sorry iam not understand
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a) Z element which is chlorine...
b) covalent bond
c) valency of X - 1, valency of Z - 1
d) Y- 0/, Z=7/
e ) HCl
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