Dates: Modify: 2020-08-29. SO42- sulfate. any compound in which bivalent selenium is combined with a positive element, as potassium selenide, K 2 Se, or with a group. Use the subscript (X 2) and superscript (X 2) buttons as needed. The development of sodium and potassium ion batteries (SIBs/KIBs) has seen tremendous growth in recent years due to their promising properties as a potential replacement for lithium-ion batteries (LIBs). Contents. Use subscripts to make the compound neutral. In this work, combining both advantages of potassium‐ion batteries and dual‐ion batteries, a novel potassium‐ion‐based dual‐ion battery (named as K‐DIB) system is developed based on a potassium‐ion electrolyte, using metal foil (Sn, Pb, K, or Na) as anode and expanded graphite as cathode. The name of a monatomic anion consists of the stem of the element name, the suffix -ide, and then the word ion. In addition, KIB shares a similar storage mechanism with current Li‐ion batteries. selenide /sel"euh nuyd', -nid/ , n. Chem. NO2- nitrite. The positive ion is on the left and the negative ion on the right. → attachment. Tantalum selenide (TaSe2) 12039-55-3. 1 Structures Expand this section. Tantalum diselenide. Here, we report ultrafine iron selenide (Fe3Se4) nanoparticles embedded into one-dimensional (1D) carbon fibers (Fe3Se4@CFs) as a potential candidate for SIBs/KIBs. Hydrogen H+ HCN. 4 Related Records Expand this section. Potassium‐ion batteries (KIBs) are a core energy storage device that can meet the need for scalable and affordable stationary applications because they use low‐cost and earth‐abundant potassium. More... Molecular Weight: 338.9 g/mol. Magnesium sulfate. TaSe2 Crystal. Potassium selenide: Barium oxide: 3 – Names of Ionic Compounds (5pts) Complete the table with the positive ion , negative ion, and the name for the compounds. 3 Chemical and Physical Properties Expand this section. K + potassium: Ca 2 + calcium: Sc 3 + scandium: Ga 3 + gallium: As 3− arsenide: Se 2− selenide: Br − bromide: Rb + rubidium: Sr 2 + strontium: Y 3 + yttrium: In 3 + indium : Te 2− telluride: I − iodide: Cs + cesium: Ba 2 + barium: La 3 + lanthanum : Example \(\PageIndex{1}\) Predict the charge on the most common monatomic ion formed by each element. Positive Ion (Cation) Formula Name Negative Ion (Anion) Potassium K+ K3PO4 Potassium phosphate. Create: 2005-08-08. Similarly, O 2− is the oxide ion, Se 2− is the selenide ion, and so forth. Name the compound. Lithium nitrite. the ions have the electronic structure of a noble gas (group 0 element), with a full outer shell For elements in groups 6 and 7, the charge on the ion is equal to (8 minus group number). 5 Chemical Vendors. Tantalum selenide. PO43- phosphate. Hydrogen cyanide. … Thus, as we have already seen, Cl − is “chlor-” + “-ide ion,” or the chloride ion. 2 Names and Identifiers Expand this section. Magnesium Mg2+ MgSO4. Lithium Li+ LiNO2.