Most likely a negative ion.
If you mean an atom with more electrons than protons it is called an ion. More specifically an anion (negatively charged)
That is called a neutral atom, because it has no electric charge. If the atom has an electric charge (i.e., it has more protons than electrons, or more electrons than protons), it is called an ion.That is called a neutral atom, because it has no electric charge. If the atom has an electric charge (i.e., it has more protons than electrons, or more electrons than protons), it is called an ion.That is called a neutral atom, because it has no electric charge. If the atom has an electric charge (i.e., it has more protons than electrons, or more electrons than protons), it is called an ion.That is called a neutral atom, because it has no electric charge. If the atom has an electric charge (i.e., it has more protons than electrons, or more electrons than protons), it is called an ion.
an ion with a 2- charge has 2 more electrons than usual
An atom that has lost valence electrons is called a cation. This causes the atom to have a positive charge due to having more protons than electrons.
When there are more protons than electrons in an atom, it is called an ion. Specifically, it is a cation when it has a positive charge due to the excess protons.
That would be called the atom itself since it consists of the nucleus and one or more electrons
An ion is a electrically charged atom (negative ion) has more electrons that protons and positive ion has more protons that electrons)
An atom that has gained or lost electrons is called an ion. An atom that has gained one or more electrons becomes a negatively charged ion called an anion. An atom that has lost one or more electrons becomes a positively charged ion called a cation.
A charged atom is an ion. An atom that has lost one or more electrons becomes a positively charged ion called a cation. An atom that has gained one or more electrons becomes a negatively charged ion called an anion.
A unipositive or uninegative monoatomic ion.
A charged atom is called an ion.If it has more protons then electrons, it has a positive charge.If it has more electrons than protons, it has a negative charge.
The loss of one or more electrons from an atom is called ionization. This process results in the formation of a positively charged ion known as a cation.