The size arrangement of atoms, protons, nuclei and neutron electrons and so on.

Atoms consist of nuclei and electrons; The nucleus consists of protons and neutrons. Size: Atomic Nucleus: Neutron ≈ Proton "Electron.

Examples are as follows: (below 10- 10 meter, representing 10 minus 10 meter)

Diameter of water molecule: 4×10-10m. Generally, the diameter of gas molecule is about 4×10-10m, and the diameter of oxygen molecule is about 3×10-0m.

The radius of sodium atom is about:1.86×10-10 meter; The radius of aluminum atom is about:1.43x10-10 meter.

General nuclear size:10-15 ~10-14m.

Proton neutron diameter is about 3×10-15m. Proton consists of two upper quarks and one lower quark, and neutron consists of two lower quarks and one upper quark.

Extended data:

A positive atom contains a dense nucleus and many negatively charged electrons around the nucleus. The nucleus of a negative atom is negatively charged, and the surrounding negative electrons are positively charged. The nucleus of a positive atom consists of positively charged protons and electrically neutral neutrons. The antiprotons in the nucleus of a negative atom are negatively charged, which makes the nucleus of a negative atom negatively charged. When the number of protons is the same as the number of electrons, the atom is electrically neutral; Otherwise, it is a positively or negatively charged ion.

According to the number of protons and neutrons, the types of atoms are different: the number of protons determines which element the atom belongs to, while the number of neutrons determines which isotope the atom is. Atoms make up molecules, but the same charges in molecular matter repel each other and different charges attract each other.

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