The Roman numeral tells you the number of electrons a polyvalent cation (usually a transition metal) gives up to participate in the ionic bond. Example: "Iron (III) oxide" means the iron is giving up 3 electrons to form the compound Fe2O3.
Roman numerals are used to identify the oxidation state of transition metals with more than one possible oxidation state.
That the charge of iron is +3 resulting in a formula of Fe2(SO4)3
The total positive charge of the cation, which is the iron ion in this case.
An exponent is a numeral used to tell how many times a number is used as a factor.
I think it means how many atoms is in the element im not quite sure if im right or wrong it's just a guess off the top of my head.
C
it is ionic bonding because magnesium is a metal and oxygen is not. ionic bonding occurs between a metal and non-metal
H2o is having hydrogen bond but h+ and oh- also we are indicating why we can't say are ionic bond?
One way to determine if a bond is ionic or covalent is to look at the electronegativity difference between the two atoms. If the difference is large (greater than 1.7), the bond is likely ionic. If the difference is small (less than 1.7), the bond is likely covalent. Additionally, ionic bonds typically form between a metal and a nonmetal, while covalent bonds form between two nonmetals.
Roman numerals are used to identify the oxidation state of transition metals with more than one possible oxidation state.
Roman numerals in transition metal names indicate the oxidation state of the metal ion. This is important because transition metals can exist in multiple oxidation states, so the Roman numeral helps to specify which one is present in the compound.
The oxidation number of an element in an ionic bond indicates its charge when it gains or loses electrons to achieve a stable octet. By comparing the oxidation numbers of the elements involved, you can determine how many electrons each element has gained or lost in the formation of the bond.
The bond formed between the two is an Ionic bond. You can tell by using the difference in the elements electronegative, or just know the general trend that a metal and nonmetal form an ionic bond.
That the charge of iron is +3 resulting in a formula of Fe2(SO4)3
The total positive charge of the cation, which is the iron ion in this case.
Most of the time the bond between a metal and a nonmetal is ionic. However, there are some exceptions, such as BeCl2, which is covalent. The difference in electronegativity determines what kind of bond will form. Metals and nonmetals with a difference in electronegativity of >1.6 are considered to have an ionic bond.
No. One way to tell is that Ba and O are on opposite sides of the periodic table, and Ba is a metal and O is a nonmetal. We can also determine the difference in electronegativity. A difference of >1.6 is generally considered as ionic. The electronegativity of Ba is 0.89 and of O is 3.44. 3.44 - 0.89 = 2.55, so the bond is ionic. Electronegativity chart: https://en.wikipedia.org/wiki/Electronegativity