2.1 Giant Ionic Structures Flashcards
How do giant ionic structures stay bonded?
The electrostatic forces between the oppositely charged ions hold them together
What state are ionic compounds at room temp?
Solid
Why are ionic compounds solid at room temp?
They have many strong electrostatic forces
Why do ionic compounds have very high melting and boiling points?
The electrostatic forces are so strong that they need a lot of energy to break those bonds
What happens when an ionic compound melts?
The ions are free to move because the strong electrostatic forces from the bonds are broken
When can ionic compounds carry electrical charge?
When they molten or dissolved in a solution
Why can dissolved or molten ions conduct electricity?
The ions can move freely and carry the charge
Why can some ionic substances dissolve in water and others can’t?
Water, as a polar molecule, has positive and negative poles so can pull ions apart. However some ions have a stronger charge than water so the water can’t pull them apart
What are the structures for ionic compounds?
Giant lattice structures
What is an ion?
A version of an atom with a positive or negative charge depending on whether it has more or less electrons than protons
What is an isotope?
A version of an atom with different numbers of neutrons
Why can’t ionic compounds not conduct electricity when at room temp?
Because they are solid and when they’re solid they can only vibrate around a fixed point, they can’t move around
