Why do nonmetals tend to form anions when they react to form compounds? What is the reason that chemists categories Fe, Co and Ni in the same group VIIIB? How and where did the Periodic table become in existence? Also, how has the periodic table been beneficial...
Why do metals conductivity rate reduces with increase in temperature? When industrial chemists want to make chlorine and lye through electrolysis, why can't they use electrodes made of common metals, such as silver or iron, or zinc? Why does platinum not affect the po...
On the day of the “science decathlon,” I donned a lab coat I bought on the Internet and nervously faced a roomful of antsy fifth and sixth graders. I asked them to think about what would happen if you kept dividing a drop of water in half — could you do it forever? No, they s...
Later, I have learned that quantum chemists have already been able to understand why Ag2+ is special, and wherefrom the stark differences between coinage metals originate [24]. 5 From Hole on Metal to Hole on Nonmetal An additional argument for studying Ag2+ fluorides came from ESR and ...
Now, we all have small incremental amounts of these toxic elements in our bodies. Some chemists have proposed thatwe have everything within us that is on the periodic table. All of it, just in varying amounts.So, yes, you may have lead, you may have mercury, but not very large amoun...
Answer and Explanation:1 Mendeleev's periodic table was rejected because he was unable to tell the location of a hydrogen atom in the periodic table. Also, when we move from...
What formal term is applied to (a) the horizontal rows of the periodic table, and (b) the vertical columns? Why are chemists so interested in the number of valence electrons in atoms? Which pair of elements do you expect to be most similar? Why? a)...
Why do chemists and physicists say that matter is never destroyed, only transformed into another form? Why is carbon so important to living organisms? Why do topoisomerase inhibitors (camptothecins, for example) work well as anti-cancer agents? Why does carbon fixation require energy? What does ...
When industrial chemists want to make chlorine and lye through electrolysis, why can't they use electrodes made of common metals, such as silver or iron, or zinc? Why is the periodic table organized the way it is? Explain why the exact size of an atom is difficult to determine. ...
Why are the noble gases "noble"? a. They are happy and stable because of the octet rule. b. They are always trying to bond together. c. They are unstable. Why are chemists so interested in the number of valence electrons in atoms? Explain its significance. ...