An element \( Y \) has mass number 35 and number of neutrons is 18 . Identify group number and...

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An element \( Y \) has mass number 35 and number of neutrons is 18 . Identify group number and period of the element Y.
a. 5 and 3
b. 17 and 3
c. 2 and 4
d. 7 and 2
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