Question

explain the terms 1) shell 2) sub shell 3) orbital

Answer 1

1st have p and second she'll has p orbital and 3rd cell has d orbital

Answer 2

The hard protective outer case of the mollusk or crustacean something resembling or likened to a shell becoz of its shape or function as an outer case .An explosive artillery projectile or bomb .Bombard with shells

of an relating to a orbit or orbits .each of the actual or potential patterns of electron density that may be formed in atom or molecule by one or more electrons and that can be represented as a wave functiona is called orbital
Sub shell is substitute to shell .

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