CBSE Class 10 Science 2020 Outside Delhi Set 2

Question : 1 of 7

Marks: +1, -0

Three elements

X, Y

and

Z

have atomic numbers 7,8 and 9 respectively.**
(a) Arrange them in the decreasing order of their atomic radii.
(b) Whichofthethreeismostelectronegative? Why?
(c) Write the formula of compound formed between
(i)

X

and

Y

(ii)

{\X}

and

{\Z}

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