Which of the following occurs when a covalent bond forms?

a. Electrons in valence shells are transferred from one atom to another.

b. Electrons in valence shells are shared between atoms.

c. Partial charges on polar molecules interact.

Video transcript

Hi everyone. Let's look at our next question. It says a Covalin bond is formed by a blank of electrons between atoms. Well, let's recall that Covalin bonds occur when the difference in electro negativity oops between Adams is too little for electron transfer to occur. So the two atoms are different electro negativity. One of them will attract the electron more than the other. But it's not a big enough difference to cause the electron to be completely transferred to the other. So as a result they share the electrons. So when we look at our answer choices, we see that choice A. Is sharing. So Choice A. Is our correct answer. So let's look through other answer choices just to see why they aren't the correct ones. Choice B says transferring. Well, as we said in our definition, electron transfer does not occur in co valent bond. So Choice B is not correct. Choice C says reducing um the number of electrons is not reduced between the atoms electrons are shared. So Choice C is not correct. And Choice D says interacting well the electrons are interacting um but they're not that's not the definition of a co valent bond, so Choice D. Is not correct. So, again, a co valent bond is formed by choice A sharing of electrons between atoms. See you in the next video