Atoms of two adjacent elements in the fourth period are in theground state. An atom...

Atoms of two adjacent elements in the fourth period are in the ground state. An atom of element A has only s electrons in its valence shell. An atom of element B has at least one p electron in its valence shell.

Expert Solution

As the atom of element A has only a electrons in it's valence shell, so it's either an s block element or a d block element.

As the atom of element B has atleast one p electron in its valence shell, so it's a p block element.

As the two are from adjacent groups, so A must be from group 12 and B must be from group 13.

As both are from the fourth group, so A is zinc (Zn) and B is gallium (Ga)

queen_honey_blossom answered 2 years ago

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