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Ionisation Energy

Which of the ...

Question

Which of the two will be chemically more reactive; element A with atomic number 16 or element B with atomic number 17? Why?

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Solution

Element with atomic number 17 will be more reactive as it has 7 valence electrons in it's outermost shell, it's electronegativity is very high and it would try to gain the electron as early as possible.

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Similar questions

Q. Which of the two would be chemically more reactive element? Element P of atomic number 18 or element Q of atomic number 16? Give reason.

Q. An element with atomic number

17

is placed in the group

17

of the long from periodic table. Element with atomic number

9

is placed above and with atomic number

35

is placed below it. Element with atomic number

16

is placed left and with atomic number

18

is placed right to it. Which of the following statements are correct?

a) Valency of the element with atomic number

18

b) Elements with same valency will have atomic number

16

17

18

.

c) Valency of element with atomic number

9

17

35

d) Element with atomic number

17

is more electronegative than element with atomic number

16

35

Q. An element with atomic number

17

is placed in the group

17

of the long form periodic table. Element with atomic number

9

is placed above and with atomic number

35

is placed below it. Element with atomic number

16

is placed left and with atomic number

18

is placed right to it. Which of the following statements are correct:
(i) Valency of the element with atomic number

18

0

(ii) Elements with same valency have atomic number

16, 17

18

(iii) Valency of elements with atomic number

9, 17

35

is one
(iv) Element with atomic number

17

is more electronegative than elements with atomic number

16

35

Q. An element with the atomic number

19

will most likely combine chemically with the element whose atomic number is :

X

17

) reacts with an element

Y

20

) to form a divalent halide. What will be the nature of oxide of element Y?

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