Ionic Compounds Flashcards
What is an ion?
An atom or group of atoms with a positive or negative charge
When do ions form?
When atoms loose or gain electrons to obtain a full outer shell
Do metals lose or gain electron to have a full outer shell?
Lose- positively charged ions
Do non metals gain or lose electrons to form a full outer shell?
Gain-negatively charged ions
What are cations?
Positively charged ions
What are anions?
Negatively charged ions
What is ionic lattice?
The regular arrangement of ions in an ionic substance
What does ionic bonding form between?
Two atoms when an electron is transferred from one atom to the other— positive-negative ion pair
What is ionic lattice held together by?
Ionic bonds
Ionic bonds are strong ___ ___ between oppositely charged ions
Electrostatic forces
Why do ionic compound have high melting and boiling points?
A lot of energy is needed to break the ionic bonds/ electrostatic for forces
How can a substance conduct energy?
If it contains charged particles and the particles are free to move from place to place
When do ionic compound conduct electricity?
When molten to form a liquid or dissolved in water- aqueous solution
What are polyatomic ions?
Charged particles consisting of two or more atoms joined together
