Answer: as soon as an atom loses an electron, it becomes a cation (positive ion). Once an atom benefit an electron, it i do not care an anion.

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This diagram screens the difference in between a positively charged ion (cation), a neutral atom, and also a negatively charged atom (anion). Source
Ions are developed when an atom loser or benefit an electron. Atoms have the right to never shed or obtain protons, together this would readjust the an essential identity the the atom. The in its entirety charge is determined by the balance in between protons and also electrons. In the chart below, the negatively charged atom is said to have a -1 charge while the more positively charged atom has actually a+1 charge.As was proclaimed before, when an atom loses an electron, it i do not care a cation. What type of building material can form cations?
Table Salt (NaCl). Picture Source
Substances which experience ionic bonding develop a positive cation and also a negative anion i m sorry are organized together by these charge attractions. Salts, such as the NaCl displayed above, are a kind of solid i m sorry is hosted together by ionic bonding. These ions disassociate in polar solvents, such as water. This is why table salt disappear in water. In this aqueous state, the Na+ and Cl- ions start to move approximately freely in the solution and become ions. These free moving cations and also anions room the reason why this brand-new solution is a great conductor that electricity.
Silver (Ag) Bars. Photo Source
Metals, which usually form metallic bond are also prone to ionizing. Silver, shown above, nearly always ionizes with a+1 charge. There metallic bonds room slightly weaker 보다 the ionic bond before and also that that why they have the right to sometimes lose electrons without lot trouble. The electron in steels are additionally delocalized, which method that they deserve to move roughly freely. This makes it very an overwhelming to accurately suspect what charge most metals will form. The steels with type known charges space Ag (+1), Zn (+2) and also Sc (+3).

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Periodic Table v electronegativies. Darker = higher Electronegativity. Source
To summarize, once an atom loser an electron it i do not care a cation. You will certainly generally aspects as cations on the left-hand side of the routine table, due to the fact that these facets have a short electronegativity. The very same logic deserve to be applied to the various other side the the periodic table, wherein you will typically see aspects as anions due to the fact that they have fairly high electronegativities.