positive charge
An object gains a negative charge by gaining an excess of electrons. When an object either gains electrons from another object or loses protons, it can become negatively charged.
Objects become charged when they gain or lose electrons. When an object gains electrons, it becomes negatively charged, and when it loses electrons, it becomes positively charged. This charge imbalance creates an electric field around the object.
Electrons always have their charge, when atoms gain electrons, they become ions.
A charge is made by adding or removing electrons from an object. Electrons have a negative charge, so adding more electrons makes the object negatively charged, while removing electrons makes it positively charged. This process is known as charging by friction or induction.
An object can be electrostatically charged by friction, contact or induction.
Normally it has an equal amount of both, but it can lose and gain electrons. This gives it an electrical charge. If there are more protons than electrons the charge is positive and if there are more electrons the charge is negative.Added:But charged particles are called IONS, not atoms.
when atoms gain electrons they acquire negative charge
Silicon typically has four valence electrons and is neutral with no net charge. If it gains three additional valence electrons, it will have a total of seven valence electrons. This would result in a net charge of -3, as gaining electrons gives the atom a negative charge.
Electrons are the part of an atom that is transferred to provide static charge. When electrons are transferred between objects, one object becomes positively charged (loss of electrons) and the other becomes negatively charged (gain of electrons).
A positively charged particle is called a proton. A negatively charged particle is called an electron.
An object becomes negatively charged by gaining electrons. Electrons are negatively charged particles that can move from one object to another, causing an imbalance of charge and resulting in the object becoming negatively charged.
Cu(2-) does not exist, because Cu does not gain electrons at all being a metal. When it gives off two electrons Cu(2+) ions are formed.