Topic 2 Structure And Bonding 📚 Flashcards
What is the stability condition for atoms regarding their outer shell of electrons?
Atoms are more stable with a full outer shell of electrons.
How do atoms achieve a full outer shell?
Atoms will lose or gain electrons to achieve this.
What charge do atoms that lose electrons (metals) acquire?
Positive charge.
What charge do atoms that gain electrons (non-metals) acquire?
Negative charge.
What is an ion?
An atom with a charge.
How can charges on ions be determined?
From the position of atoms in the Periodic Table.
What three subatomic particles need to be calculated in different ions?
Protons, neutrons, and electrons.
What are simple molecular compounds characterized by?
Strong covalent bonds holding the atoms together in a molecule.
What type of forces exist between simple molecules?
Weak intermolecular forces.
List three properties of simple molecular compounds.
- Gases and liquids with low melting and boiling points
- Do not conduct electricity
- Strong covalent bonds between atoms.
What is a covalent bond?
A pair of electrons shared between two atoms.
What is a double covalent bond?
A bond consisting of 4 shared electrons.
What defines a giant covalent structure?
Every atom is joined to other atoms with strong covalent bonds.
What is the electrical conductivity of giant covalent structures?
Does not conduct electricity.
What is the solubility of giant covalent structures in water?
Insoluble.
