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  2. Work breakdown structure - Wikipedia

    en.wikipedia.org/wiki/Work_breakdown_structure

    The adjacent figure shows a work breakdown structure construction technique that demonstrates the 100% rule and the "progressive elaboration" technique. At WBS Level 1 it shows 100 units of work as the total scope of a project to design and build a custom bicycle. At WBS Level 2, the 100 units are divided into seven elements.

  3. Sodium-ion battery - Wikipedia

    en.wikipedia.org/wiki/Sodium-ion_battery

    A P2-type Na 2/3 Fe 1/2 Mn 1/2 O 2 oxide from earth-abundant Fe and Mn resources can reversibly store 190 mAh/g at average discharge voltage of 2.75 V vs Na/Na + utilising the Fe 3+/4+ redox couple – on par or better than commercial lithium-ion cathodes such as LiFePO 4 or LiMn 2 O 4. [38] However, its sodium deficient nature lowered energy ...

  4. Negative air ions - Wikipedia

    en.wikipedia.org/wiki/Negative_air_ions

    In the air, due to the presence of many water molecules, the negative air ions formed are easy to combine with water to form hydrated negative air ions, which are typical negative air ions, such as O − ·(H 2 O)n, O 2 − ·(H 2 O)n, O 3 − ·(H 2 O)n, OH − ·(H 2 O)n, CO 3 − ·(H 2 O)n, HCO 3 − ·(H 2 O)n, CO 4 − ·(H 2 O)n, NO 2 ...

  5. Ionophore - Wikipedia

    en.wikipedia.org/wiki/Ionophore

    The structure of the complex of sodium (Na +) and the antibiotic monensin A Structure of a potassium complex of a crown ether, a synthetic ionophore-ion complex. Biological activities of metal ion-binding compounds can be changed in response to the increment of the metal concentration, and based on the latter compounds can be classified as "metal ionophores", "metal chelators" or "metal ...

  6. Chemical ionization - Wikipedia

    en.wikipedia.org/wiki/Chemical_ionization

    [1] [2] This was first introduced by Burnaby Munson and Frank H. Field in 1966. [3] This technique is a branch of gaseous ion-molecule chemistry. [ 2 ] Reagent gas molecules (often methane or ammonia) [ 4 ] are ionized by electron ionization to form reagent ions, which subsequently react with analyte molecules in the gas phase to create analyte ...

  7. Resource breakdown structure - Wikipedia

    en.wikipedia.org/wiki/Resource_Breakdown_Structure

    Both human and physical resources, such as software and test instruments, are listed in the example above. The nomenclature is a numbered, hierarchical list of indented layers, each level adds an additional digit representing. For example, the numeric labels (1.1, 1.1.2) make each resource uniquely identifiable. [3]

  8. Ionic bonding - Wikipedia

    en.wikipedia.org/wiki/Ionic_bonding

    The charge of the resulting ions is a major factor in the strength of ionic bonding, e.g. a salt C + A − is held together by electrostatic forces roughly four times weaker than C 2+ A 2− according to Coulomb's law, where C and A represent a generic cation and anion respectively. The sizes of the ions and the particular packing of the ...

  9. Oxocarbon anion - Wikipedia

    en.wikipedia.org/wiki/Oxocarbon_anion

    In chemistry, an oxocarbon anion is a negative ion consisting solely of carbon and oxygen atoms, and therefore having the general formula C x O n− y for some integers x, y, and n. The most common oxocarbon anions are carbonate, CO 2− 3, and oxalate, C 2 O 2− 4. There are however a large number of stable anions in this class, including ...

  1. Related searches wbs level 2 adalah singkatan dengan cara yang paling mudah membentuk ion negatif

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