Hydrogen usually loses its single electron to become a hydrogen ion, H+.
Aluminum will lose 3 electrons to form Al3+ ion.
An atoms protons cannot change.The number of neutrons can change (gain or lose) to form an isotope (ex. Hydrogen naturally has no neutrons. But it can gain neutrons to form Heavy Hydrogen, or in other words, a Hydrogen Isotope).An atom can gain or lose electrons to form an ion. Usually an atom will gain or lose electrons to fill its valence (outermost) shell. It takes just as much energy to gain an electron as it is to lose one, so an atom will always look to lose or gain the least amount of electrons possible. (ex. Oxygen has 6 valence electrons. It will look to gain 2 electrons, rather than lose 6).Protons: DO NOT CHANGENeutrons: Can change to form an isotopeElectrons: Can change to form an ion
Lead tends to lose electrons to form a 2+ oxidation state. This means that lead typically loses two electrons to achieve a stable electron configuration.
Oxidation typically involves the loss of electrons or the gain of oxygen atoms. Oxidation does not necessarily involve the gain or loss of hydrogen atoms; however, in some cases, oxidation reactions can involve the loss of hydrogen atoms.
Metals tend to lose electrons because of their low ionization energy, allowing them to easily form positive ions. This process forms cations, which are attracted to surrounding negative ions or electrons in compounds. This ability of metals to lose electrons contributes to their metallic bonding and characteristic properties such as conductivity and malleability.
An ionic bond.
it will lose 3 electrons
Aluminum will lose 3 electrons to form Al3+ ion.
when it forms an ion it would gain two electrons, becoming negatively charged (2-)
ions
Iodine tends to gain one electron when it forms an ion.
Hydrogen can both gain and lose electrons, depending on the situation. For example, in a chemical reaction, hydrogen can lose its electron to form a positive ion (H+) or gain an electron to form a negative ion (H-).
Hydrogen itself is an atom. If that hydrogen atom were to lose/gain/share electrons it would become an isotope/ ion
An atoms protons cannot change.The number of neutrons can change (gain or lose) to form an isotope (ex. Hydrogen naturally has no neutrons. But it can gain neutrons to form Heavy Hydrogen, or in other words, a Hydrogen Isotope).An atom can gain or lose electrons to form an ion. Usually an atom will gain or lose electrons to fill its valence (outermost) shell. It takes just as much energy to gain an electron as it is to lose one, so an atom will always look to lose or gain the least amount of electrons possible. (ex. Oxygen has 6 valence electrons. It will look to gain 2 electrons, rather than lose 6).Protons: DO NOT CHANGENeutrons: Can change to form an isotopeElectrons: Can change to form an ion
Lose
Silicon will tend to gain electrons in order to achieve a stable outer electron configuration, as it has 4 valence electrons and typically forms covalent bonds with other elements by sharing electrons.
Helium is already stable. Hydrogen should gain or lose one electron to be stable.