Depends on what you mean by number of electrons. Calcium has 20 electrons and oxygen has 8 electrons for a total of 28 electrons. But if you mean how many VALENCE electrons, then the calcium has 2 and the O has 6 for a total of 8 valence electrons.
The word equation for the extraction of calcium from calcium oxide by electrolysis is: Calcium oxide (solid) -> Calcium (liquid) + Oxygen gas.
calcium has 20 neutrons and electrons
There is no elemental calcium in calcium oxide. Calcium oxide is a compound made up of calcium and oxygen atoms bonded together. When calcium oxide reacts with water, it forms calcium hydroxide, which contains calcium ions but not elemental calcium.
Calcium has 20 protons and electrons and a variable number of neutrons, depending on the isotope.
Calcium oxide (CaO) contain one atom of calcium.
20 neutrons
The most stable isotope, calcium-40 has 20 neutrons.
Calcium oxide has the chemical formula CaO, which consists of one calcium atom and one oxygen atom. So, there are a total of 2 atoms in calcium oxide.
Just two: calcium and oxygen.
The word equation for the extraction of calcium from calcium oxide by electrolysis is: Calcium oxide (solid) -> Calcium (liquid) + Oxygen gas.
calcium has 20 neutrons and electrons
calcium oxide is calcium combine whit oxygen
There is no elemental calcium in calcium oxide. Calcium oxide is a compound made up of calcium and oxygen atoms bonded together. When calcium oxide reacts with water, it forms calcium hydroxide, which contains calcium ions but not elemental calcium.
There are 214 protons and neutrons in the molecule.
Calcium oxide is legal.
CaO is calcium oxide
The word equation for calcium plus iron oxide is: calcium + iron oxide → calcium oxide + iron. In this reaction, calcium displaces iron in iron oxide to form calcium oxide and elemental iron. This type of reaction is known as a displacement reaction, where a more reactive element displaces a less reactive element in a compound.