When an atom actually gains a neutron from outside it is called neutron capture. Atoms almost never emit neutrons (except when high energy processes happen).
Most cases of "gain or loss" of neutrons by an atom happen entirely inside the nucleus, when the process of Beta decay converts a proton to or from a neutron.
An atom that loses electrons becomes a positively charged ion called a cation. An atom that gains electrons becomes a negatively charged ion called an anion.
Ion. Any atom that loses or gains an electron becomes an ion.
A neutral atom that gains or loses electrons is now an ION. If it loses electrons to become M^(n+), then it is a CATION. If it gains electrons to become X^(n-), then it is an ANION. NB Atoms that gain or lose electrons are no longer atoms , but IONS.
An ION . Metal (M) ionises ( loses electrons) M(g) = M^(n-) + ne^(-) M^(n+) is a CATION . Non-metal (X) has electron affinity ( gains electrons) X(g) + ne^(-) = X^(n-) X^(n-) is an ANION .
An atom that loses or gains electrons is called an ion. When an atom loses electrons, it becomes positively charged and is called a cation. When an atom gains electrons, it becomes negatively charged and is called an anion.
This is called a redox reaction. An atom that loses an electron is oxidized and an atom that gains an electron is reduced.
covalent/ionic bonding.
First of all to correct your English grammar. The question should read ; - " What is a**n** atom that g(r)ain or loses electrons?" The answer is an ION . A positively (+) charged ion is named a CATION A negatively (-) charged ion is named an ANION
Ion. Any atom that loses or gains an electron becomes an ion.
An atom that loses electrons becomes a positively charged ion called a cation. An atom that gains electrons becomes a negatively charged ion called an anion.
ION A positively (+) charged ion is named a CATION A negatively (-) charged ion is named an ANION NB When an atom becomes a charged species it is no longer an atom, but an ION . An atom has a neutral charge.
covalent/ionic bonding.
Ion. Any atom that loses or gains an electron becomes an ion.
A neutral atom that gains or loses electrons is now an ION. If it loses electrons to become M^(n+), then it is a CATION. If it gains electrons to become X^(n-), then it is an ANION. NB Atoms that gain or lose electrons are no longer atoms , but IONS.
An ION . Metal (M) ionises ( loses electrons) M(g) = M^(n-) + ne^(-) M^(n+) is a CATION . Non-metal (X) has electron affinity ( gains electrons) X(g) + ne^(-) = X^(n-) X^(n-) is an ANION .
When an atom loses or gains electrons, it becomes an ion.
an atom that gains an electron becomes a negative ion, called an anion.