Hydrogen itself is an atom. If that hydrogen atom were to lose/gain/share electrons it would become an isotope/ ion
The gas formed when hydrogen atoms fuse is helium. Stars do this.
carbon atoms, hydrogen atoms, hydroxide atoms
Hydrogen is a molecule formed by three atoms out of which two are hydrogen and one is oxygen
an ionic compound is formed
A cation, which is a positively charged ion, is formed when an atom loses electrons.
Water (H2O) is the compound formed by two atoms of hydrogen and one atom of oxygen.
A molecule of water is formed with a polar covalent bond.
If atoms gain electrons, negatively charged anions are formed. If atoms lose electrons, positively charged cations are formed.
When atoms are removed from a molecule, the resulting structure can vary depending on which atoms are taken away. Typically, the removal of specific atoms can lead to the formation of smaller molecules or fragments. For example, if water (H₂O) loses a hydrogen atom, it can form a hydroxyl radical (OH). The specific molecule formed depends on the particular atoms that are removed and the context of the chemical reaction.
Covalent
Hydrogen
Loss of electrons: A substance loses electrons, leading to an increase in its oxidation state. Gain of oxygen or loss of hydrogen: The substance reacts with oxygen or loses hydrogen atoms. Increase in oxidation state: The oxidation number of the substance increases. Formation of products: New compounds are formed as a result of the oxidation process.