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We don't know exactly, but mathematical models predict it was early. Protons and Neutrons had already fused to produce the current Hydrogen/Helium ratio before matter and radiation decoupled, leaving what is now the 3K blackbody radiation.

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What do the protons and neutrons form?

Atomic nucleus is formed from protons and neutrons.


What happened 3 mintues after the big bang?

Three minutes after the Big Bang, the universe had cooled down enough for protons and neutrons to begin combining to form the first atomic nuclei, a process known as nucleosynthesis. This marks the beginning of the era of light nuclei formation in the early universe.


What do protons and neutrons form of an atom?

the nucleus


Where in an atom are the protons and neutrons located?

The protons and neutrons are grouped together in the nucleus. The electrons form a cloud around the nucleus.


Is the nucleus made of protons and neutrons that have a positive charge?

The nucleus of an atom is composed of protons and neutrons, but only the protons carry a positive charge. The neutrons do not carry any charge.


Protons neutrons and electrons combine to form what?

Protons, neutrons, and electrons can form any type of atom on the Periodic Table of Elements.The amount of protons determine what type of element an atom is.If the number of neutrons differ from the stable amount it should have, the atom is known as an isotope.If the amount of electrons differ from the amount of protons, the atom is known as an ion.


Is boron protons electrons or neutrons?

Boron is an atom or element, and it contains protons, electrons, and neutrons.


Is the number of protons the mass?

Not necessarily. An estimated form of atomic mass is protons + neutrons.


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Which particle or particles make up the nucleus?

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Where are proton neutron and electron fond?

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How many protons are there in the c-12 isotope how about the number of neutrons?

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