Question

The electron density between $1\mathrm{s}$ and $2\mathrm{s}$ orbital is?

• A. High
• B. Low
• C. Zero
• D. Abnormal

Answer 1

The correct option is C

Zero

The explanation for the correct option:

Option (C): Zero

• We know the region between $1\mathrm{s}$ and $2\mathrm{s}$ orbital is known as the nodal plane.
• The nodal plane is defined as the region in which the probability of finding an electron is considered to be zero.
• Thus the electron density is known to be zero in the region between $1\mathrm{s}$ and $2\mathrm{s}$ orbital.

The explanation for the incorrect option:

Option (A): High

• The electron density between $1\mathrm{s}$ and $2\mathrm{s}$ orbital is not considered high.
• Hence, the given option is not represented as the correct concept.

Option (B): Low

• The electron density between $1\mathrm{s}$ and $2\mathrm{s}$ orbital is not represented to be low.
• Thus, the given option is the incorrect one.

Option (D):Abnormal

• The electron density between $1\mathrm{s}$ and $2\mathrm{s}$ orbital is not considered abnormal.
• Hence, the given option is not considered the correct concept.

Hence, the electron density between $1\mathrm{s}$ and $2\mathrm{s}$ orbital is zero, option (C) is the correct answer.