1 f Ionic bonding Flashcards
1.37 - 1.43
What is an ion
Electrically charges atom or group of atoms formed by the loss or gain of electrons
Why is there a loss or gain of electrons
To obtain a full outer shell
What are anions
Negative ion, electrons>protons
What are cations
Positive ion, protons>electrons
All metals … electrons to form ions
Lose
All non-metals … electron to form ions
Gain
How to deduce a charge of an ion
-Find the number of valence electrons
-Does the atom gain or lose electrons more easily
What are the ion charges on Copper (II), Iron (II), Lead, Zinc
2+
What are the ion charges on Silver and hydrogen
1+
What is the charge on Irons (III)
3+
What is the charge on ammonium
NH₄⁺
What is the charge on hydroxide
OH⁻
What is the charge on carbonate
CO₃ ²⁻
What is the charge on nitrate
NO₃ ⁻
What is the charge on sulfate
SO₄ ²⁻
What force holds an ionic compound together
Electrostatic force of attraction
Do ionic compounds have a high or low melting point
High
Why do ionic compounds have high melting points
Because of strong electrostatic forces, lots of energy needed to overcome them
What state are ionic compounds at room temperature
Solid (not likely to change suddenly (non-volatile))
Are ionic compounds water soluble
Yes
What ionic compounds have stronger forces
The ones with higher charges
In what states can ionic compounds conduct electricity
Molten or in a solution
Why can ionic compounds conduct electricity when molten or in solution
Ions can move and carry charge
Why cant they conduct electricity when solid
Ions dont move and theyre in a fixed positions within the lattice
