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spørsmålet		svaret
Which type of elements form covalent bonds? begynn å lære		Two non-metals.
Which types of elements form non-covalent bonds? begynn å lære		A non-metal and a metal.
Does covalent bonding involve gaining / losing electrons? begynn å lære		No, electrons are shared.
What is shared in a single covalent bond? begynn å lære		One pair of electrons.
Why are covalent bonds strong? begynn å lære		Because of the strong attraction between shared electrons and the nuclei.
Why can nitrogen bond with three hydrogens? begynn å lære		Because nitrogen needs three more electrons and each hydrogen shares one.
How many covalent bonds does nitrogen form in ammonia? begynn å lære		Three covalent bonds.
Why do chlorine atoms form covalent bonds? begynn å lære		Each chlorine atom needs one more electron for a full outer shell.

Chemistry - Covalent bonding