→ Chemistry - Covalent Bonding → Börja lära dig / Ladda ner MP3 Flashcards

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

Chemistry - Covalent bonding