An atom with high `EA` generally has

Options

A. Tendency to form `+ve` ions
B. High ionisation energy
C. Large atomic size
D. Low electron affinity

Answer

To solve the question "An atom with high electron affinity generally has," we need to analyze what high electron affinity means and how it relates to other atomic properties.

### Step-by-Step Solution:

1. **Understanding Electron Affinity (EA)**:
- Electron affinity is the energy change that occurs when an electron is added to a neutral atom in the gas phase. A high electron affinity indicates that the atom has a strong tendency to gain an electron.

2. **Tendency to Form Ions**:
- Atoms with high electron affinity tend to gain electrons easily. This means they are more likely to form negative ions (anions) rather than positive ions (cations). For instance, chlorine (Cl) has a high electron affinity and readily forms Cl⁻ when it gains an electron.

3. **Relation to Ionization Energy**:
- Ionization energy is the energy required to remove an electron from an atom. Generally, elements that have high electron affinity also have high ionization energy. This is because if an atom is eager to gain an electron, it is also likely to hold onto its electrons tightly, requiring more energy to remove one.

4. **Atomic Size Considerations**:
- Electron affinity is inversely related to atomic size. Atoms with smaller atomic radii tend to have higher electron affinities because the added electron experiences a stronger attraction from the nucleus. Therefore, larger atoms typically have lower electron affinities.

5. **Conclusion**:
- Based on the analysis, an atom with high electron affinity generally has high ionization energy and a smaller atomic size. Therefore, the correct answer to the question is that an atom with high electron affinity generally has high ionization energy.

### Final Answer:
An atom with high electron affinity generally has high ionization energy.

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