First of all 'FeO' is NOT an element. It is a compound composed of two elements. The elements being iron(Fe) and oxygen(O).
Next, you appear to misunderstand between 'Ionic' and 'molecular'.
Any substance is a composed of two or more atoms is a molecule.
The method of combination of these atoms can be either 'Ionic' or 'covalent'.
Iron(II) Oxide (FeO) is an ionic molecule (compound).
Fe^(2+)(aq) + O^(2-)(aq) = FeO(s)
Yes, FeO is connected by an ionic bond. In FeO, iron (Fe) has a positive charge and oxygen (O) has a negative charge, leading to the formation of an ionic bond between the two elements.
The element chlorine at standard temperature and pressure is molecular and has the formula Cl2.
Neither, because silicon is an element, not a compound.
Sodium chloride (NaCl) is an ionic compound.
Iron(II) oxide (FeO) forms an ionic bond. Iron loses electrons to oxygen, resulting in the formation of Fe2+ and O2- ions which are held together by electrostatic forces.
Fluorine is molecular, but it is an element, not a compound.
What is 'cr'? If you mean chromium, then the chemical symbol is 'Cr'. NB For all elemental symbols , single letter symbols are ALWAYS a CAPITAL letter. Two letter symbols are written as, first letter is a CAPITAL letter and the second letter is small/lower case. This is the recognised international standard and as shown in the Periodic Table. Chromium is a METAL. Ionic or molecular does not come into it. Ionic is a type of Bonding. Molecular is the adjective for polyatomic substances, irrespective of bonding. NB Chromium when it bonds with oxygen to form an oxide bonds ionically. , but this is NOT a full definitive answer. Because it can bond covalently in the potassium dichromate. NNB It is alloyed (Mixed) (NOT Bonded), with steel to form Stainless Steel. NNNB As a lump of elemental metal it is in METALLIC bonding.
Yes, FeO is connected by an ionic bond. In FeO, iron (Fe) has a positive charge and oxygen (O) has a negative charge, leading to the formation of an ionic bond between the two elements.
Sulfur is a chemical element.
The element chlorine at standard temperature and pressure is molecular and has the formula Cl2.
Neither, because silicon is an element, not a compound.
Sodium chloride (NaCl) is an ionic compound.
Iron(II) oxide (FeO) forms an ionic bond. Iron loses electrons to oxygen, resulting in the formation of Fe2+ and O2- ions which are held together by electrostatic forces.
Iodine is a molecular compound because it contains two atoms of the same element chemically bonded together.
No. It is ionic. That means that Zn has given off to of its electrons to Oxygen and because of the difference in electrical charge between the to they form a binding.
Copper itself is a pure element and does not form compounds under normal conditions. However, copper can combine with other elements to form both ionic and molecular compounds depending on the elements it is bonded with.
Ionic. This is the best decription of FeO, iron(II) oxide.