It is a negative charge
Atoms that have lost or gained one or more electrons are called ions.An atom that has gained and electron is an anion; and atom that has lost an electron is a cation. Gaining an electron means the anion has a negative charge; losing one or more electrons means the atom has a positive charge.
Gained 2 electrons
An atom that has gained an electron becomes a negatively charged ion.
An atom or group of atoms with a negative charge is called an anion. Anions have gained one or more electrons, leading to an overall negative charge.
An atom has no charge. An ion is an atom that has either gained or lost an electron giving it a charge. An atom that has gained an electron is called an anion and is negative, while an atom that lost an electron is called a cation and is positive.
An atom has no charge. An ion is an atom that has either gained or lost an electron giving it a charge. An atom that has gained an electron is called an anion and is negative, while an atom that lost an electron is called a cation and is positive.
An atom has a postitive charge when it loses an electron and a negative when it gains one. It then becomes an ion through this process.
I believe the answer your looking for in an Ion.An ion is an atom or molecule in which the total number of electrons is not equal to the total number of protons, giving it a net positive or negative electrical charge.
' cl- ' is nothing. . It does not mean a thing. However, if you mean ' Cl^(-) ' or 'Cl-' Then it is NOT an atom . It is an ION, and more correctly an 'ANION'. NB For ALL chemical elemental symbols the first letter is ALWAYS a CAPITAL letter. Hence 'Cl/Cl^(-)' not 'cl-'. NB An atom is a neutrally charged species. The number of protons is balanced by the same number of electrons. An ion carries a positive/negative charge. The number of electrons differed from the number of protons. So ' Cl ' is an ATOM , but ' Cl^(-) ' is an ION . Any atom that carries a charge is no longer an atom but an ion. Positively charged ions are named 'CATIONS'. Negatively charged ions are named ' ANIONS'.
Reduction. The atom has gained a negatively charged electron and has a charge of -1.
-1, since each electron has a charge of -1.