First atomic model was proposed by

Options

A. Rutherford
B. JJ Thomson
C. Bohr
D. Maxwell

Answer

**Step-by-Step Solution:**

1. **Understanding the Question**: The question asks for the individual who proposed the first atomic model. We need to identify the correct scientist from the options provided: Rutherford, J.J. Thomson, Bohr, or Maxwell.

2. **Identifying the First Atomic Model**: The first atomic model was proposed by J.J. Thomson in 1897 after his discovery of the electron.

3. **Description of Thomson's Model**: J.J. Thomson's atomic model is often referred to as the "plum pudding model." In this model, the atom is visualized as a sphere of positive charge with negatively charged electrons (like seeds) embedded within it, similar to the way seeds are distributed in a plum pudding or watermelon.

4. **Key Features of Thomson's Model**:
- The atom consists of a uniform positive charge.
- Electrons are scattered throughout the atom.
- Most of the atom's volume is empty space, with a dense nucleus at the center.

5. **Conclusion**: Based on the information, the correct answer to the question is J.J. Thomson.

**Final Answer**: The first atomic model was proposed by J.J. Thomson.

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