It is called an indirect instance of watching, noticing, or making a statement. you might also be thinking of quiet and sneaky instance of watching, noticing, or making a statement but that is when you sense something that is below the point where something begins or changes of the senses.
Answer:
The mass number is defined as the total number of protons and neutrons in an atom. The number of neutrons = mass number − atomic number.
A element mixture (key word: mixture) due to the mixture containing 2 different types of elements it can be said that it’s highly likely that the mixture was not a compound but instead of a mixture due to mixture meaning more than 1 material. Hopes this help!
Almost without exceptions, the alkali metals (Li, K, Na,...) are in oxidation state (I) and the alkaline earth metals (Be, Mg, Ca, ...) are in oxidation state (II).
So without confusion, the naming of the metal part is simply the metal name, such as calcium oxide.
The Stock system (which indicates the oxidation state) is required only when the metal exhibits multiple oxidation states, such as iron (II) oxide or iron (III) oxide.
Then again, older nomenclature applies the ending -ous to the lower oxidation state, and -ic to the higher. Using the Latin name ferrum for iron, the previous compounds were named ferrous oxide and ferric oxide respectively.
