History of nucleus
Chemistry is the science of how three tiny particles, the proton, the neutron, and the electron
When atomic theory was first proposed, not the colloquial definition of theory, which is "a guess." it wasn't that long ago that people were running around saying that. Atoms had been postulated for a long time by the 20th century,
but it wasn't until Einstein mathematically proved the existence of atoms and molecules in 1905.
How Does the nucleus work
Nucleus is the name for protons and neutrons attracted together , If neutrons and protons were never attracted the nucleus wouldn't exist , which would lead to extinction of world and living beings as there would be no matter
Nuclei, which is the plural of nucleus, they're thousands of times smaller than the atom as a whole
You couldn't pack silver's 47 protons together in the nucleus by themselves. They couldn't handle it; they'd rip themselves apart. So nuclei only clump together permanently when the right number of protons and neutrons get together. Silver needs about 60 neutrons to space out the 47 protons correctly. But it doesn't have to be 60.
Nucleus lies in the middle of the atom around the shells , shells are where electrons move through but shells are just a metaphor
Number of protons
The number of protons in an atom's nucleus defines what element it is. Each element has a unique atomic number, which is simply the number of protons in its nucleus. For example, all hydrogen atoms have 1 proton, all helium atoms have 2 protons, and so on.
Isotopes:
Atoms of the same element can have different numbers of neutrons. These variations are called isotopes. Although isotopes have the same number of protons (and thus are the same element), they can have different chemical properties due to their different masses.