# How much plutonium is in a hydrogen bomb?

## How much plutonium is in a hydrogen bomb?

In practice, bombs do not contain hundreds of tons of uranium or plutonium. Instead, typically (in a modern weapon) the core of a weapon contains only about 5 kilograms of plutonium, of which only 2 to 2.5 kilograms, representing 40 to 50 kilotons of energy, undergoes fission before the core blows itself apart.

### Do Hydrogen Bombs need plutonium?

To make a hydrogen bomb, one would still need uranium or plutonium as well as two other isotopes of hydrogen, called deuterium and tritium. Hydrogen bombs are also harder to produce but lighter in weight, meaning they could travel farther on top of a missile, according to experts.

How much plutonium do you need to make a bomb?

Mark Werner, Student of warfare and weapons for many years. With all fissile materials, you need a “critical mass” of the substance to make a bomb. The critical mass for plutonium is about 11 kg and would make a sphere about 4″ in diameter. Other materials have much larger critical masses.

How much mass does it take to make a nuclear bomb?

The first nukes actually managed to convert less than ONE GRAM of mass (Pu) into energy. Mark Werner, Student of warfare and weapons for many years. With all fissile materials, you need a “critical mass” of the substance to make a bomb. The critical mass for plutonium is about 11 kg and would make a sphere about 4″ in diameter.

## How much uranium was used to make the hydrogen bomb?

The total uranium used was 55 lbs. A hydrogen bomb however converts about a kilogram or 2 lbs of mass to pure energy. But in order to convert this much, you have to start with about 140 kilos or 300 lbs. of hydrogen.

### How big of a sphere do you need to make a bomb?

With all fissile materials, you need a “critical mass” of the substance to make a bomb. The critical mass for plutonium is about 11 kg and would make a sphere about 4″ in diameter. Other materials have much larger critical masses. This is actually a more difficult question to answer than it appears at first.