The charge.
Its there too tell you the charge of the compound.
Polar compounds are those which have a net charged moment. Nonpolar compounds do not have a net charge, they are equal and neutral
A double replacment is a way of forming a new homogenous mixture. Generally double-replacement reactions involve the exchange of positive ions between two reacting compounds. Typically the compounds are in aqueous solution and are often characterized by the production of a precipitate. Explained: When dealing with two ionic compounds dissolved in water to form a homogenous mixture, there are two possiblities when they are mixed togeather. *They form a new homogenous mixture *A chemical reaction will occur,
Numbers are used to indicate the valency of the metal in the compound. By convention Roman numerals are used so that the number isn't mistakenly confused with the numbers present in the formula.
Anything in the second column of the periodic table: beryllium, Magnesium, calcium, etc. AND many of the transitional metals (though they can also be 3+, 4+, or even more), commonly: iron, nickel, zinc, manganese.
Oxygen typically carries a charge of -2 when forming compounds.
Selenium typically has an ionic charge of -2 when forming compounds.
No, binary ionic compounds are made up of positively charged metal ions and negatively charged nonmetal ions. While metals can form ionic compounds with nonmetals, not all metals are involved in forming binary ionic compounds.
Physical properties of metals include: luster, malleability, and ductility. Chemical properties include: forming cations, and reacting with nonmetals to form ionic compounds.
Nonmetals tend to gain electrons to achieve a stable outer electron configuration, forming negatively charged ions. Metals tend to lose electrons to achieve a stable outer electron configuration, forming positively charged ions. This difference in electron behavior often leads to the formation of ionic compounds between metals and nonmetals.
Group 1 and Group 2 metals (alkali metals and alkaline earth metals) do not require their charge oxidation number specified in the names of ionic compounds they form. This is because they typically have a fixed charge that does not vary.
Metals are more likely to donate electrons to form ionic compounds. However, some transition metals such as mercury and tin can form covalent bonds in which the metal shares an electron with another atom
Elements in Group 2 of the periodic table, such as calcium, magnesium, and strontium, typically have a charge of 2 when forming ionic compounds. This is because they readily lose two electrons to achieve a stable electron configuration.
they generally dont change charges, they are usually rearanged forming new compounds.
When forming a compound the chemical formula or compound is made stable with a net charge of zero by the sharing of electrons (covalent compounds/molecules) or the transfer of electrons (ionic compounds).
Transition metals, such as those in groups 3-12 of the periodic table, are known for forming colorful compounds due to their ability to absorb and reflect different wavelengths of light. The presence of unpaired d electrons in transition metals allows them to participate in various electron transitions, resulting in vibrant colors in their compounds.