sulfur because it have unknown metal
i just got done with the unit 2 weeks ago
Fluorine is the most reactive non-metal because it is the most electronegative of all of the non-metal elements of the periodic table. Due to its strong electro negativity & small size, Fluorine has a strong tendency to accept electrons from other atoms or ions. As a result it oxidises all other substances.
Helium will be inert. Lithium is the most reactive element, followed by chlorine.
The elements tend to resemble the closest noble gases in terms of their electronic configuration of the last layer, that is, having eight electrons in the last layer to be stable. Then, the reactivity of an element measures the tendency to combine with others to generate the mentioned stability.
Within a period, the groups located on the left of the periodic table are more reactive than groups on the right. This is because it is easier to lose the electron of the last layer possessed by the elements located on the left than more than one electron in the rest of the elements. When we reach a certain group the trend is reversed since it will be easier to gain the missing electrons to resemble the nearest noble gas. Therefore, in a period the reactivity of metals increases the further to the left in the period (less electrons to remove). The reactivity of nonmetals increases as the period progresses since it is the case in which it is easier to acquire electrons to acquire stability, and increases to advance in a period since the less electrons they need to acquire, the more reactants they are.
Within a group, as we descend into it, the electrons of the last layer are farther from the nucleus and, therefore, it will be easier to remove them. In the case of nonmetals, it will be more difficult to take electrons. Then the reactivity of the metals increases when advancing in a group (greater tendency to lose electrons) and the reactivity of the nonmetals increases the higher in the group (greater tendency to take electrons).
Finally, you have noble or inert gases. Its inert name is due to the lack of reactivity with other elements. This is due to its electronic configuration, because its outermost layer or valence layer is always complete, without the need to share, transfer or receive electrons forming bonds. That is, its outer layer is so stable that the element tends not to react with others except in very specific cases.
Taking into account everything mentioned above, it is possible to say that helium is a noble gas, so it will be inert. Lithium is the most reactive element, followed by chlorine.
The following answer are based only on emf values
a).Most anodic element ,Titanium - Ti
b).Metal That will corrode easily is : Titanium - Ti
c). Most reactive metal is Titanium-Ti
d).Al can't be used for making implants because it undergo corrosion easily and do not form strong passive oxide layer.
Ti forms very strong passive layer which prevents further corrosion.
Au is least reactive and does not corrode.
Note : You have to give answer according to E valuesIn actual(without considering E values) most anodic, reactive , corrosive element is Al
Here the oxidation potential data is given (since elements are getting oxidised)
: Standard Reduction Potential : It is tendency of the element to gain electron and get reduced.
Oxidation Potential is opposite to reduction potential
Standard Oxidation Potential :It is tendency of the element to loose electron and get oxidised.
It is measured in Volts/VMore positive (greater)the value of the oxidation potential , stronger is the tendency of the element to get oxidised.More negative(lesser) the value of oxidation potential lesser the tendency of the element to get oxidised. Hence the element undergo Reduction in comparison to other with more positive value .
The main application values is in electrochemical cell to predict the products of the reaction. or predict whether the reaction is spontaneous or not.Anodic means tendency to undergo oxidation
Since has maximum value of = 2.00V , so it get oxidised as compared to other elements.Corrode , The metal which oxidise easily will also undergo corrosion easily
From the , E values Ti show maximum tendency of oxidation hence it also get corroded easily.Ti is the most reactive because it oxidised fast as compare to other elements Au (gold) is the least reactive element as its value is negative. So gold don't get corrode and used for making implants. Ti can also be used , since it is most reactive so it react with oxygen present in atmosphere and form a passive layer of oxide which prevent its corrosion. Al also form passive oxide but form very thin layer which is not able to protect it from corrosion
uranium-238 i believe is your answer
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