The chemical formula of hydronium ion is (H3O)+.For the "oxide ion" check your spelling.
The noble gas that is isoelectronic with the oxide ion O2 is neon (Ne). Both the oxide ion O2 and the neon atom have 10 electrons.
Oxide ion (O2-) is isoelectronic with neon. Both species have the same number of electrons, which is 10.
FeO (iron oxide . it's another name) The correct answer is Iron(III)oxide which is Fe2O3
Na is positive ion,Cl is negative ion
The positive ion in calcium oxide is the calcium ion (Ca^2+), which has lost two electrons. The negative ion in calcium oxide is the oxide ion (O^2-), which has gained two electrons.
The charge of an oxide ion is negative. It has a charge of -2 due to gaining two electrons to achieve a stable electronic configuration.
O2- is the formula for oxide ion. The negative symbol indicates the presence of anions and 2 represents the oxidation state.
Calcium oxide is a compound composed of calcium (Ca) and oxygen (O) ions. Calcium has a 2+ charge, while oxygen has a 2- charge. Therefore, calcium oxide is made up of a positive calcium ion (Ca2+) and a negative oxide ion (O2-).
an anion is simply an atom of an element which has 1 or more excess electrons in addition to its own electrons.this is the reason an anion has negative charge equals to the number of excess electrons it has.
Oxygen can have a negative charge when it gains an extra electron, forming an oxide ion (O2-). This extra electron gives the oxygen atom a negative charge, making it more stable by achieving a full outer electron shell.
The typical suffix used for a negative ion is -ide as in chloride, oxide, sulfide, etc.
An oxide ion has a negative two charge (-2)
The chemical formula of hydronium ion is (H3O)+.For the "oxide ion" check your spelling.
The formula for the oxide ion is O2-, and the formula for the nitrate ion is NO3-.
An oxide ion has 8 protons. This is because it is an oxygen atom that has gained 2 electrons to become negatively charged. The number of protons remains the same as the number of protons in a neutral oxygen atom.
The noble gas that is isoelectronic with the oxide ion O2 is neon (Ne). Both the oxide ion O2 and the neon atom have 10 electrons.