# Why are protons and neutrons the same mass?

Protons and neutrons are made up of the same fundamental particles, so it makes sense that they have the same mass. Protons are composed of two up quarks, each with a mass of +2/3 the mass of a proton, and one down quark, with a mass of -1/3 the mass of a proton.

Neutrons are composed of two down quarks, each with a mass of -1/3 the mass of a neutron, and one up quark, with a mass of +2/3 the mass of a neutron. Since each quark has an equal contribution to the total mass of the protons and neutrons, the combined mass of the particles is the same, making the protons and neutrons the same mass.

In addition to this, there is also the electrostatic and strong nuclear forces that create equilibrium between the protons and neutrons. The strong nuclear forces that operate inside a nucleus hold the protons and neutrons together, which helps maintain the equilibrium necessary for them to have the same mass.

## What is the actual mass of a neutron?

The actual mass of a neutron is 1. 674927471 x 10^-27 kg, which is around 1. 008 atomic mass unit (amu). Neutrons have no electrical charge, so the amount of mass contained twice the amount of mass than other particles, such as the proton.

In fact, neutrons are the heaviest subatomic particles in an atom, and they play an essential role in the formation of atomic nuclei. Due to their neutral electrical charge, neutrons are not affected by the electrical forces that bind protons together.

This means that their mass is mainly composed of the energy of the strong nuclear force that binds protons and neutrons together.

## What is the main difference between protons and neutrons?

The main difference between protons and neutrons is that protons have a positive electrical charge whereas neutrons have no charge at all. Protons have a mass of about 1. 672 x 10-27 kilograms, which is about 1836 times larger than the mass of a single electron.

The mass of a neutron is about 1. 675 x 10-27 kilograms, about 1. 4% larger than the mass of a proton.

From a chemical perspective, protons make up the nucleus of an atom, the positively charged center from which electrons orbit around. This makes up the atom’s identity, as different elements are characterized by the number of protons they each contain.

Neutrons, on the other hand, can be found in the nucleus, but their function is to help keep the protons within the nucleus. Neutrons also add to the mass of the atom, but do not contribute any electrical charge.

In summary, the main difference between protons and neutrons is that protons have a positive electrical charge while neutrons have no charge. Protons are essential to the nucleus of an atom, and help determine an atom’s identity with its unique number of protons, while neutrons don’t provide any charge but do contribute to the mass of the atom.

## Why do protons not attract electrons?

Protons do not attract electrons because protons and electrons both have an electrical charge, but they are oppositely charged. This means that unlike charges will repel one another, not attract. Electrons are negatively charged and protons are positively charged, so they naturally repel one another instead of attract, making it impossible for them to form a bond.

The only thing which can cause attraction between protons and electrons is a force more powerful than their respective electrical charges like the electromagnetic force, gravity, or the strong and weak nuclear forces.

## Is a proton a mass of 1?

No, a proton is not a mass of 1. A proton is a subatomic particle with a positive electric charge. It is one of the two constituent particles of an atom, the other being an electron. Its mass is approximately 1.

673 × 10−27 kilograms, which is roughly 1837 times the mass of an electron.

## Is mass of electron equal to mass of neutron?

No, the mass of an electron is not equal to the mass of a neutron. The mass of an electron is usually estimated at 9. 10938356 x 10^-31 kilograms, while the mass of a neutron is 1. 674927471 x 10^-27 kilograms, so the mass of an electron is much less than the mass of a neutron.

## How many electrons have the same mass as a single neutron?

No electrons have the same mass as a single neutron. Neutrons have an atomic mass of 1. 008664915 u, whereas the mass of a single electron is much smaller and can be estimated as 9. 10938356×10−31 kg or 0.

000548579909067 u.

### Resources

1. What is the significance of the proton and neutron being …
2. 4.4: The Properties of Protons, Neutrons, and Electrons
3. Do protons and neutrons have the same mass? – Quora
4. Why is a neutron heavier than a proton? – Cosmos Magazine
5. The Structure of the Atom – Introductory Chemistry