Question

the atomic no. of the three element X,Y,Z are 2,6,10 respectively : which two element is in same group. give a reason

Answer 1

Answer:

Atomic number 2 is He(X)

Atomic number 6 is C (Y)

Atomic number 10 is Ne(Z)

X and Z belongs to same group that is Noble gas group but He is not included in that group.

Answer 2

Answer:

Atomic number 2 is He(X)

Atomic number 6 is C(Y)

Atomic number 10 is Ne(Z)

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