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.
An atom that has lost or gained an electron or electrons is called an ion. When an atom loses an electron, it forms a positive ion because the protons then outnumber the electrons. When an atom gains an electron, it forms a negative ion because the electrons now outnumber the protons. A positive ion is called a cation (pronounced "cat-ion" not "ca-shun.") A negative ion is called an anion (pronounced "an-ion" not "an-yun.")
A cation is an ion which has less electrons than protons, therefore it has a net positive charge. The atom (or molecule) has given up 1 or more electrons to form the ion. An ion which has gained 1 or more electrons (and therefore has net negative charge) is called an anion.
The largest Bohr orbit of the uranium atom can hold up to 92 electrons, as uranium has 92 protons. Each orbit in an atom can hold a maximum number of electrons given by the formula 2n^2, where n is the principal quantum number of the orbit.
An atom with 10 electrons will have 2 electron shells. The first shell can hold up to 2 electrons, and the second shell can hold up to 8 electrons.
An oxygen atom can share up to two electrons to form a covalent bond with another atom. This is because oxygen has six valence electrons and can complete its octet by sharing two electrons with another atom.
the term is an ION
Selinium is a non metal element. There are 34 electrons in a single atom.
An atom that has lost or gained an electron or electrons is called an ion. When an atom loses an electron, it forms a positive ion because the protons then outnumber the electrons. When an atom gains an electron, it forms a negative ion because the electrons now outnumber the protons. A positive ion is called a cation (pronounced "cat-ion" not "ca-shun.") A negative ion is called an anion (pronounced "an-ion" not "an-yun.")
A neutral atom is an atom with an equal number of electrons and protons without any additional energy. An excited atom has electrons that have absorbed energy and moved up to another layer. Ions are atoms that have a different number of electrons from the neutral atom.
An Ion makes up the electric charge of an atom. It can be a positively (+) charged atom or a negatively (-) charged atom, depending on the number of protons versus electrons. On the other hand, an atom is the smallest part of an element composed of electrons, protons, and the nucleus. So, ion-atoms with the same number of protons but a different number of electrons. Its not the easiest thing to study so you should complete your projects day by day from the day it was given.
The atom's electrons.
A cation is an ion which has less electrons than protons, therefore it has a net positive charge. The atom (or molecule) has given up 1 or more electrons to form the ion. An ion which has gained 1 or more electrons (and therefore has net negative charge) is called an anion.
I believe you mean an ion, which is an atom or a group of atoms that has acquired a net electric charge by gaining or losing one or more electrons. atoms that lose electrons are metals that become positively charged cations. atoms that gain electrons are non-metals that become negatively charged anions.
In simple terms, an atom is made up of Protons, Neutrons, and Electrons. Protons have positive charge (+1), Neutrons have no charge (0), and Electrons have negative charge (-1). If an atom gains or loses Electrons, it's net charge changes. To result in a negative charge, the atom must have more Electrons than Protons.
To make a positive ion, we need to remove one or more of the negative components from an atom. The negative charges that make up an atom are the electrons, which can be found in shells or orbitals some distance from the nucleus. Take away one or more electrons, and the protons, the positive charges that make up atoms and which hang out in the nucleus, give the atom an overall positive charge. An atom that has lost one or more electrons becomes a positive ion.
Atoms (and ions) are not made of compounds. Compounds are made of two or more different atoms.
An atom is made up of neutrons, electrons and protons.