Protons and neutrons are made from which of the following particles?
up quarks only
up quarks and down quarks <my choice
down quarks only
hadrons
You don't need to post twice. someone will see your other question and answer it.
I agree.
Protons are 2 ups and 1 down. Neutrons are two downs and 1 up.
Protons and neutrons are made from up quarks and down quarks. To understand why, we need some background on the structure of matter.
Matter is composed of atoms, which consist of a nucleus surrounded by electrons. The nucleus is made up of protons and neutrons, collectively known as nucleons.
Quarks are elementary particles that are considered the building blocks of protons and neutrons. There are six types of quarks, and the two types relevant to this question are up quarks and down quarks.
Protons are composed of two up quarks and one down quark, while neutrons consist of one up quark and two down quarks. These up and down quarks are bound together by the strong nuclear force to form protons and neutrons.
So, the correct option is "up quarks and down quarks." These particles combine in specific configurations to create the protons and neutrons that make up the nucleus of an atom.