Phosphorous or nitrogen
Chlorine (Cl) is the most likely element to form an ionic compound with barium (Ba) due to their opposite charges and high reactivity. Barium typically forms Ba2+ ions, while chlorine forms Cl- ions, allowing them to easily combine to form BaCl2.
Argon doesn't form any ions as it has completely filled orbitals and is chemically inert.
An element like lithium (Li) or sodium (Na) would most likely form an ionic bond with nitrogen (N) because they are metals that readily donate electrons to form positive ions. Nitrogen has a high electronegativity and tends to gain electrons to form a negative ion in ionic bonding.
An element with low electronegativity is likely to be a good conductor of electricity, have a tendency to lose electrons in chemical reactions, and form positive ions easily. These elements are typically found on the left side of the periodic table.
The most common element dissolved in seawater is chlorine, primarily in the form of chloride ions (Cl⁻). Chloride ions account for about 55% of the total dissolved salts in seawater. Sodium, in the form of sodium ions (Na⁺), is the second most abundant, and together, these two elements contribute to the salinity of ocean water.
Krypton (Kr) is the element in group 18 that is most likely to form a compound with fluorine. It can form compounds like KrF2 under extreme conditions.
Cesium is the element that is most likely to form an ionic compound with chlorine because it readily loses an electron to form Cs+ ions, which can then combine with Cl- ions to form CsCl, known as cesium chloride. Helium and iodine do not typically form ionic compounds with chlorine.
In tap water, you will most likely find iron. In distilled or deionized water, no.
An element with a large negative electron affinity is more likely to form a negative ion because it strongly attracts electrons to achieve a stable electron configuration. This results in the formation of negatively charged ions.
most transition metals form ions with a 2+ charge.
Dispersion & Dissociation
Potassium