Structure and Bonding Flashcards
In chemical bonding, what are atoms trying to achieve?
The structure of a noble gas (full shells)
What does chemical bonding either involve?
Transferring or sharing electrons in the outer shell of an atom
What is produced when Group 7 metals (halogens) react with alkali metals?
Ionic compounds
What’s the charge of an atom that loses electrons?
+
What’s the charge of an atom that gains electrons?
-
What’s the charge of a halide ion?
-
What’s an ionic compound?
A giant structure of ions
What are ionic compounds held together by?
Electrostatic forces of attraction between oppositely charged ions
What do Group 1 metals (alkali metals) that react with non-metals to form?
Ionic compounds
What is the charge on a metal ion?
+
What’s a compound?
A substance in which atoms of 2 or more elements are chemically combined
What are 2 giant covalent structures?
Diamond
Silicon dioxide
What are covalent bonds?
Atoms that share pairs of electrons
List some of the covalent bonds (7)
H2, Cl2, O2, HCl, H2O, NH3, CH4
Name two substances with giant covalent structures
Diamond
Silicon Dioxide
