Question

these are two elements X atomic no. 17 and Y atomic no.20
@write the position of X and Y in periodic table.
b.)write the molecular formula of compound XY
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Answer 1

Explanation:

X belongs to Group 17 and 3rd period

Y belongs to Group 2 and 4th period

b) X-Non-metal and Y metal

c) Basic oxide; Ionic bonding