Question

if the atomic number of three elements x,y, and z are 6,10,and 18 respectively then: (a) which of the two elements belong to the same group? (b) which of the two elements belong to the same period?​

Answer 1

Answer:

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Explanation:

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Answer 2

Answer:

a. y and z b. x and y

Explanation:

x, y and z are carbon, neon and argon respectively.

Carbon and neon both belong to period 2. Neon and Argon are both inert gases and belong to group 18.