As an element oxygen is neutral, but it forms negative ions.
hydrogen
An ion of oxygen with a positive charge is called a "positively charged oxygen ion" or "oxygen cation." This type of ion is less common than the negatively charged oxygen ion (oxygen anion). It forms when an oxygen atom loses one or more electrons.
hydrogen
Oxygen's atomic number is 8. Thus it has 8 positively charged protons per atom. In order for oxygen to be neutral, it must also have 8 negatively charged electrons in each atom.
Both are negatively charged.
Oxygen and hydrogen
Almost always negative.
Because they also have 8 negatively charged electrons.
The overall charge of an oxygen atom is 0, as it has 8 protons (positively charged) and 8 electrons (negatively charged), making it electrically neutral.
Calcium and oxygen will form an ionic bond in the compound calcium oxide. Calcium will donate its two electrons to oxygen, creating a positively charged calcium ion and a negatively charged oxygen ion, which will attract each other to form the bond.
Oxygen can ionize by losing electrons to form a positively charged ion. This can occur when an oxygen atom gains enough energy to overcome the attraction of its electrons, causing one or more electrons to be ejected from the atom. The resulting oxygen ion will have a positive charge due to the loss of negatively charged electrons.
Hydrogen