Question

Consider the following substances: P4, S8, KBr, Ti, H2O. Which could be explained as cations held...

Consider the following substances: P4, S8, KBr, Ti, H2O. Which could be explained as cations held together by mobile electrons?

PLease i need details

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Answer #1

answer :   Ti

explanation :

P4 is perfectly covalent crystal it cannot form cation . it is called molecular crystal

S8 it is also molecular crystal so cannot form cation

KBr can split up into ions as K+ and Br- . each K+ ion surrounded by Br- and each Br- surrounded by K+ ions. so cation doesnot surrounded by mobile electrons .

H2O is also molecular crystal . so it cannot have mobile electrons .

here Ti is perfectly metal . it can loose electrons easily forms cation .

Ti ----------------------> Ti+     + e-

the Ti+ ion is dipped in number of mobile electrons . so it is best conductor

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