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In a neutral atoms,
the protons and electrons number is the same. On the other hand, neutron
number does not necessarily mean proton number. With charged atoms
called ions. E-number than the proton smaller atom with a positive
charge, called cations. On the contrary of atoms with a negative charge,
called anions. Metallic element of the most outer electron in general
is less than 4, in response to the easy loss of electronics, tend to
achieve a stable structure as the cationic, non-metallic elements in the
outer electron in general is more than four, in chemical reactions easy
to get electronics, tend to to stabilize the structure of. |