Vocabulary
Type of chemical bond in which atoms that have gained or lost electrons are held together due to their opposite charges.
Ionic bond
The reason Li+ and Cl− are held together.
Opposite charges attract.
Which is the correct ratio:
(a) NaCl
(b) Na2Cl
(c) NaCl2
+25 Bonus: What is the name of this compound?
(a) NaCl
Sodium chloride
Bird
A bird in the hand is worth 2 in the bush.
2-in-1
1. Ca2+ and Cs+ are two examples.
1. F− and O2− are two examples.
1. cation
2. anion
The reason a calcium ion is Ca2+ instead of Ca+ or Ca3+.
A neutral calcium atom loses 2 valence electrons to become stable, giving it a charge of 2+.
Which is the correct ratio:
(a) BaF
(b) Ba2F
(c) BaF2
+25 Bonus: What is the name of this compound?
(c) BaF2
Barium fluoride
Nail
Hit the nail on the head.
Mixtures of 2 or more metals
Alloys
The reason a calcium ion is Ca2+ instead of Ca2–.
A neutral calcium atom loses 2 valence electrons to become stable. If an atom starts out with a neutral charge and then loses 2 negatively-charged electrons, its resulting charge will be positive. In other words, the calcium ion now has 2 more protons (+) than electrons (–)
Which ionic compound—name and formula—forms between Francium [Fr] and Nitrogen [N]?
Fr3N
Francium nitride
Thunder
Steel someone's thunder
2-in-1
1. The property of metals that allow them to be pounded into sheets
2. The property of metals that allow them to be pulled into thin wires
1. malleable
2. ductile
According to Coulomb's law (below), which ionic compound—sodium chloride or aluminum chloride—has the stronger bond and why?
Coulomb's Law: F = k⋅q1⋅q2 ÷ r2, where F = force, k = Coulomb constant, q1 & q2 = charges, r = distance
Aluminum chloride because an aluminum cation (Al+3) has a stronger charger than a sodium cation (Na+)
Which ionic compound—name and formula—forms between Gallium [Ga] and Sulfur [S]?
Ga2S3
Gallium sulfide
Milk
Antonym of 'malleable'
Brittle
According to Coulomb's law (below), which ionic compound—sodium chloride or potassium chloride—has the stronger bond and why?
Coulomb's Law: F = k⋅q1⋅q2 ÷ r2, where F = force, k = Coulomb constant, q1 & q2 = charges, r = distance
Sodium chloride because sodium is smaller than potassium, decreasing the distance (r) between the two ions. Electric force (F) increases as r decreases.
Which ionic compound—name and formula—forms between Radium [Ra] and Xenon [Xe]?
Radium of Xenon would not form an ionic compound. Xenon, a noble gas, is already stable and does not need to gain or lose electrons.
Leg
Pull someone's leg