Which subatomic particle(s) are involved in chemical bonding?
Electrons
100
NaCl consists of which two elements and what is the chemical name?
Sodium and Chlorine, Sodium Chloride
100
What is the first step in writing a chemical name when you know the chemical formula?
Identify whether the compound is covalent or ionic.
100
What are the units for formula mass?
amu
200
Ions formed from a single atom are called _______________.
monatomic ions.
200
True or false: A chemical bond between two non-metal ion transfers electrons to complete their valence shell.
False. They share electrons, not transfer.
200
What is the name for MgBr2
Magnesium Bromide
200
How many atoms are in N2Cl2?
4
200
What is the charge on an ammonium ion?
-1
300
Element Stanlium (Sa) a is noble gas. How many electrons are missing from the valence shell of a Sa atom?
None. Noble gas atoms have full valence shells.
300
List at least 3 properties of an ionic compound.
Any of the following:
- Ionic compounds form crystals.
- Ionic compounds have high melting points.
- Ionic compounds are very hard and brittle.
- Ionic compounds conduct electricity when dissolved in water.
300
Write the chemical formula for (NH4)2S
Ammonium Sulfide
300
Identify all the problems in this chemical name: Zinc Dichlorine
1) This is an ionic compound. Therefore it should not have prefixes.
2) The second element does not end in -ide.
300
What is the name for CO2?
Carbon monoxide
400
True or False: Elements in the d-block can have different charges.
True
400
What are oxyanions?
polyatomic ions that contain oxygen
400
What is the chemical name of PbO2?
Lead (IV) Oxide
400
Write the chemical formula for tetraphosphorus decaoxide.
P4O10
400
What is the formula for sodium bicarbonate?
NaHCO3
500
Compounds of two elements are known as __________ compounds.
binary
500
What are the 3 types of bonds?
covalent, ionic and metallic
500
Assume Element "St" (Stanleynium). What is the chemical formula for Stanleynium (III) Sulfite, an ionic compound?
St2(SO3)3
500
Name the prefixes used in naming molecular compounds for 1-10 in order.