17 questions linked to/from Is KF the most ionic compound?
538 views

### Is carbon–sodium bond mainly ionic or covalent?

We all know that carbon mostly forms covalent bonds (almost always) and sodium mostly forms ionic bonds (almost always). But if $\ce{NaOH}$ reacts with ethyne, then $\ce{HC#CNa}$ and $\ce{H2O}$ are ...
2k views

### Determining which compound is more 'ionic'

I was going through my chemistry textbook (IB Pearson), and it explicitly stated that the higher the absolute difference between the electronegativity of elements in a binary compound, the more 'ionic'...
4k views

### Ionic Character, on which factors do it depend [duplicate]

I was watching a lecture of chemistry teacher. He gave the following question: Q Arrange in terms of increasing ionic character: LiF,NaF,KF,RbF,CsF? My try: I tried two approaches: Approach 1: As F ...
6k views

### Is PbO ionic compound?

In IIT-JAM 2018, There was one question, which one of the following oxides are ionic? There was one option PbO also. According to the official answer key, PbO isn't ionic. Although I know this ...
4k views

### The impossibility of 100% ionic bond

Recently, I read the definition of oxidation state on Wikipedia. It read that a 100% ionic bond is impossible. So what does a 75% ionic and 25% covalent bond mean at all?
177 views

### Why does a carbocation undergo covalent bonding with, say, chloride, rather than ionic bonding, like what occurs between Na+ and Cl-?

I've been trying to look for an answer for a while but I can't find one. Why does a carbocation accept an electron pair from a nucleophile and form a covalent bond rather than just accepting one ...
45 views

### I have a question regarding chemical bonds

can NaCl bond be called polar covalent bond? I understand that it's ionic bond but Na is still sharing its electron with Cl. I am confused with Ionic and polar covalent bond.
155 views

Shannon, R. D., 1976, Revised effective ionic radii and systematic studies of interatomic distances in halides and chalcogenides: Acta Crystallographica Section A, v. 32, p. 751–767. DOI: 10.1107/...
2k views

### Why is the melting point of KBr higher than that of CsCl?

I thought that when compounds have similar forces and charges, the one with the higher molecular weight has the higher melting point. If that is true, then why is the melting point of $\ce{KBr}$ ...
15k views

### Is beryllium difluoride covalent or ionic?

My textbook says that despite the large electronegativity difference $\ce{BeF2}$ is covalent since the beryllium ion will have too much charge density and it will attract the fluorine electron cloud ...
1k views

### Which has more ionic character, LiF or K2O?

After drawing the structures of both and considering dipole moment, doesn't it seems that all K2O should have more ionic character than LiF? My textbook says its LiF.
3k views

### Covalent and Ionic bonds with Semi-metals

why are some semimetals considered as a metal, and some, a nonmetal when paired with some atoms. Like in BF, it is an ionic bond, but in SiCl, it is a covalent bond. Do their electronegativities ...
4k views

### Is FeS2 both an ionic and covalent compound? [duplicate]

Iron (II) disulfide. Iron pyrite. Fool's gold to some. But what bond does it fall under? It could possibly be used for both? This would give a deeper understanding into other like examples, where ...
The statement below is an excerpt from my school textbook:- Because of the tendency of fluorine to form hydrogen bond, metal fluorides are solvated by $\ce{HF}$ giving species of the type \$\ce{...