A hydrogen atom is a paramagnetic. A hydrogen molecule is –

Options

A. a. Diamagnetic
B. b. Paramagnetic
C. c. Ferromagnetic
D. d. Can't say

Answer

To determine the magnetic properties of a hydrogen molecule based on the information provided about a hydrogen atom, we can follow these steps:

### Step 1: Understand the Magnetic Properties of a Hydrogen Atom
A hydrogen atom consists of one electron and one proton. The single electron in the hydrogen atom is unpaired, which gives rise to a net magnetic moment. This results in the hydrogen atom being classified as **paramagnetic**.

### Step 2: Analyze the Structure of a Hydrogen Molecule
A hydrogen molecule (H₂) is formed by the combination of two hydrogen atoms. Each hydrogen atom contributes one electron, resulting in a total of two electrons in the hydrogen molecule.

### Step 3: Determine the Spin of Electrons in the Hydrogen Molecule
In a hydrogen molecule, the two electrons are paired. This means that one electron has an "up" spin and the other has a "down" spin. Since they are paired with opposite spins, their magnetic moments cancel each other out.

### Step 4: Calculate the Net Magnetic Moment
Because the two electrons in the hydrogen molecule have opposite spins, the net magnetic moment is zero. This cancellation of magnetic moments indicates that the hydrogen molecule does not exhibit any net magnetism.

### Step 5: Classify the Magnetic Property of the Hydrogen Molecule
Since the net magnetic moment of the hydrogen molecule is zero, it is classified as **diamagnetic**. Diamagnetic materials are characterized by their lack of unpaired electrons and their tendency to be repelled by magnetic fields.

### Conclusion
Thus, the hydrogen molecule (H₂) is **diamagnetic**.