Which two particles have approximately the same mass?

Protons and Neutrons
Electrons and Neutrons
A test sample or the group that receives an experimental procedure
Electrons and Protons

Protons and Neutrons.

Protons and neutrons have approximately the same mass.

The two particles that have approximately the same mass are Protons and Neutrons.

To find this information, you can refer to a reliable source such as a physics textbook, scientific articles, or educational websites. Here are the steps to follow:

1. Look for reputable sources: Check for trusted physics textbooks, scientific articles or journals, online educational platforms, or reputable physics websites.

2. Search for information on particle masses: Look for information specifically about the masses of different subatomic particles like protons, neutrons, and electrons.

3. Compare the masses: Once you find the relevant information, compare the masses of protons, electrons, and neutrons. You will discover that protons and neutrons have similar masses.

Remember to double-check the information from multiple reliable sources to ensure accuracy.