Asked by Andy Blackwell Uncategorized
Why transition elements form good catalysts?
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What are the properties of the transition elements?
What are elements that are shiny bendable and good conductors of electricity called?
Properties of transition metals?
They often form colored compounds. They can have a variety of different oxidation states. At least one of their compounds has an incomplete d-electron subshell. They are often good catalysts. They are silvery-blue at room temperature (except copper and gold). They are solids at room temperature (except mercury). They form complex ions (aqua ions included). They are often paramagnetic.
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What are the four properties of the transition metals?
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Why are transition metals hard?
Answer Transition metals are hard because electrons can come from more shells then their outer shell. this means they have far more electrons available for bonding and so very strong metallic bonds are formed. Their other propertys include: They often form colored compounds. They can have a variety of different oxidation states. At least one of their compounds has an incomplete d-electron subshell. They are often good catalysts. They are silvery-blue at room temperature (except copper and gold). They are solids at room temperature (except mercury). They form complex ions (aqua ions included). They are often paramagnetic.
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What on the periodic table can be used to determine how an atom will form at ion?
The most common way to determine the ion of an atom on the periodic table is to look at the group it is in. Moving from left to right the elements will usually have the ionic charges of +1,+2,+3,+-4,-3,-2,-1. All elements in each group will have the same ionic charge . The transition metals are not as easy as this but a general method to use is that most transition metals have a charge of +2. This iosnt true for all of them but if you are not sure on their charge it is bsest to go with +2. Otherwise the other method i have said is a good way to determine the ion that will form
How do catalysts work to speed up chemical reaction?
Essentially, catalysts speed up chemical reactions by reducing the amount of energy required for the reaction to occur. Catalysts are not consumed in the process, and so can do this many times. Some other factors that can affect a catalysts' ability to speed a process are temperature, concentration (of either the catalyst or the chemicals being reacted) and pH level. :) Good Luck
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