A major drawback of Rutherford's model of an atom is that it does not explain the stability of the atom. He suggested that electrons are revolving around the nucleus in circular revolutions. However the circular motion is said to be accelerated. If we apply this electromagnetic theory to Rutherford's model it means that the electrons revolving around the nucleus will radiate energy continuously at every turn and move closer and closer to the nucleus. To overcome this drawback of Rutherford's model, Neils Bohr proposed a new model which suggest that electron could revolve around the nucleus in certain fixed circular paths called energy level which have fixed or quantized energy. As long as an electron remains in a particular orbit, it does lose or gain energy.
The names and order of energy levels K, L, M, N or 1, 2, 3, 4 were given by

Options

A. Rutherford
B. Dalton
C. Neils Bohr
D. Chadwick

Explanation

### Step-by-Step Solution:

1. **Understanding Rutherford's Model**:
- Rutherford proposed that an atom consists of a dense nucleus surrounded by electrons that revolve around it in circular orbits. However, this model has a significant drawback.

**Hint**: Consider what happens to an electron in circular motion according to classical physics.

2. **Identifying the Drawback**:
- The major drawback of Rutherford's model is that it does not explain the stability of the atom. According to electromagnetic theory, an electron in circular motion should continuously radiate energy, causing it to spiral into the nucleus.

**Hint**: Think about what would happen if an electron loses energy while revolving around the nucleus.

3. **Introduction of Bohr's Model**:
- To address the limitations of Rutherford's model, Niels Bohr proposed a new atomic model. He suggested that electrons can only occupy certain fixed circular paths around the nucleus, known as energy levels.

**Hint**: Focus on how Bohr's model differs from Rutherford's in terms of electron behavior.

4. **Quantization of Energy Levels**:
- Bohr's model introduced the concept of quantized energy levels. Electrons can only exist in these specific orbits without radiating energy. They will only gain or lose energy when they jump from one energy level to another.

**Hint**: Remember that quantized means that energy levels are discrete and not continuous.

5. **Naming of Energy Levels**:
- The energy levels were designated with the letters K, L, M, N, etc., or numerically as 1, 2, 3, 4, etc. This naming convention was established by Niels Bohr.

**Hint**: Consider who was responsible for the naming of these energy levels and their significance in the atomic model.

### Final Answer:
The names and order of energy levels K, L, M, N or 1, 2, 3, 4 were given by Niels Bohr.