Multiple choice

In s-block, electrons are filled in the

  1. p orbital

  2. s orbital

  3. d orbital

  4. f orbital
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B Correct answer
Explanation

At any given moment, an electron can be found at any distance from the nucleus and in any direction according to the Heisenberg Uncertainty Principle. The s orbital is a spherically-shaped region describing where an electron can be found, within a certain degree of probability. The shape of the orbital depends on the quantum numbers associated with an energy state. All s orbitals have l = m = 0, but the value of n can vary.

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