Covalent Bonds Flashcards
What is a key feature of covalent bonds as opposed to ionic bonds?
Valence electrons populating from both atoms
How is valence electrons populating both atoms made possible?
The speed of electrons (2/3 of light speed)
How much stronger are covalent bonds than ionic bonds?
5-20 times stronger
What is the octet rule?
Aim to fill their outer valence shell
Are covalent bonds disrupted by water?
No but the compounds are soluble
What electron configuration do atoms want to adopt?
The nearest noble element
What do electronegativity values allow us to predict?
Whether an ionic bond or a covalent bond will form
What must the electronegativity number be for a covalent bond to form?
Delta EN must be <2.1
What is ionisation energy?
The energy required to remove a valence electron from a given atom
What is electronegativity?
An atoms ability to attract electrons in a chemical bond
