→ Chemistry - Covalent Bonding → Rozpocznij Naukę / Ściągnij Fiszki MP3

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

Chemistry - Covalent bonding