MCQ
The shape of $s$-orbital is
- APyramidal
- ✓Spherical
- CTetrahedral
- DDumb-bell shaped
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$(I)$ The radius of an anion is larger than that of the parent atom.
$(II)$ The ionization energy generally increases with increasing atomic number in a period.
$(III)$ The electronegativity of an element is the tendency of an isolated atom to attract an electron.
Which of the above statements is/are correct?