This is called a redox reaction. An atom that loses an electron is oxidized and an atom that gains an electron is reduced.
It become an ion, positively charged when it loses an electron (called a cation, e.g. Na+) or negatively charged when it gains an electron (called a anion, e.g. Cl-).
Hydrogen is the element that can form both positive (H+) and negative (H-) ions. When hydrogen gains an electron, it forms a negative ion, and when it loses an electron, it forms a positive ion.
When an atom gains a positive charge, it loses one or more electrons. This alters its charge but not its identity as an element. The number of protons, which defines the element, remains the same in a positively charged atom.
Gains: anion (-) Loses: cation (+)
Potassium loses one electron.
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)
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.
It become an ion, positively charged when it loses an electron (called a cation, e.g. Na+) or negatively charged when it gains an electron (called a anion, e.g. Cl-).
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.
Ion. Any atom that loses or gains an electron becomes an ion.
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.
ionic bond
An ion is formed when an atom gains or loses an electron