If an atom gains an electron, it becomes an anion, which is negative. Anions are larger than the original atom because of the added electrons.
N + electron(-) --> N(-)
If an atom loses an electron, it becomes a cation and positively charged. Cations are smaller than the original atom because of the lost electrons. N(2+) = cation
This is called a redox reaction. An atom that loses an electron is oxidized and an atom that gains an electron is reduced.
Ion. Any atom that loses or gains an electron becomes an ion.
An atom forms an ion when it gains or loses an electron. If an atom gains an electron, it becomes a negatively charged ion (anion). If an atom loses an electron, it becomes a positively charged ion (cation).
no
gains or loses an electron.
an atom that gains an electron becomes a negative ion, called an anion.
An ion is formed when an atom gains or loses an electrons or electrons. If it gains an electron, it becomes an anion, and if it loses an electron it becomes a cation.
Ion. Any atom that loses or gains an electron becomes an ion.
A neutral atom that subsequently gains or loses one [or more] electrons is called an ion. If it gains an electron [or electrons] it will have a negative charge. If it loses an electron [or electrons] it will have a positive charge.
An Ion. More specifically if it gains an electron it becomes an anion and it it loses an electron it becones an cation (pronounced Kat-ion)
When an atom gains electrons, negatively charged anions are formed. When an atom loses electrons, positively charged cations are formed.
ionic bond