What does HX mean in organic chemistry? Halogens: The halogens make up a different group on the periodic table. The Group 17 (Group 7A) elements in the periodic table consist of the halogens chlorine, fluorine, bromine, iodine, and astatine. ...
What does the term substrate mean? Define the term positronium. Define the term cathode. Describe the free ion activity model. Define the term anode. Activity series is a term used commonly in chemistry. What does it mean? Although both the Br_3^- and I_3^- ions are known, the F_3...
Suppose, for example, we limit their knowledge of elements that appear in the same group to the alkali metals, alkaline earth metals, and halogens. They would then form an unduly favourable impression of the similarity of elements in the same group, and would have a wrong picture of the ...
Electron Sea Model: The metallic bond, a force that holds together metals, can be explained through the electron sea model, which can also explain the physical properties of the metals. Answer and Explanation:1 In a metal, the atoms are bonded together via the metallic bond, which is differe...
Recrystallization: Recrystallization is when a substance is dissolved so that it can be purified in a hot liquid. When the solvent cools down, the solution is saturated with the solute that crystalizes, or forms a solid again. Carbonate minerals can recrystallize due to their structure. ...
Halogen bonds are a subset of sigma-hole bonds, caused by areas of positive charge (red) in otherwise electronegative atoms This positive dimple or s-hole on the halogen, at the opposite pole to its covalent bond, was first identified by Peter Politzer and Jane Murray of the University of ...
What does the term "resonance" mean in regards to chemistry? List the characteristic properties of halogens. What gives an element its characteristics? Describe how the properties of the different types of elements (metals, nonmetals, metalloids) differ. ...
Why are halogens so reactive? Define reactivity Why is the periodic table arranged by atomic number? Why does the fluorine atom tend to gain only one electron? What part of the atom is involved in chemical reactions? How did Moseley establish a more accurate periodic table?
What is the charge of halogens? What is the total electric charge of 2.5 kg of electrons? How many electrons make up -18 Coulombs of charge? What is the charge on the iron ion in Fe2S3? What does E and Z mean in organic chemistry?
What are the fundamentals of chemistry? Why did the better part of a century pass between Thomson's work and Dalton's work? Was no one interested in researching atomic theory? Answer the following question concerning Dalton's atomic theory and the modifications made today: How is water differen...