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

Chemistry - Covalent bonding