Electrons
What value on the periodic table determines an element's number of valence electrons?
What is the group number (the last digit in the group number)
Define the term oxidation state:
An oxidation state is the charge an element has when it has a full shell of valence electrons
An covalent bond is between a _________ and _________.
What is nonmetal and nonmetal
What type of ion has a positive charge?
A Cation
Which of the 4 categories of chemical reactions is
2NO + O2 → 2NO2
What is synthesis
How many valence electrons does an element need to get a full shell?
What is 8
What is the oxidation state of oxygen?
What is -2
An ionic bond is between a _________ and _________.
What is metal and nonmetal
What type of ion has a negative charge?
An anion
Which of the 4 categories of chemical reactions is 2KI +Pb(NO3)2 →2KNO3 +PbI2
What is double replacement
How many valence electrons does strontium have?
What is 2
What is the oxidation state of potassium (K)?
What is +1
Which bond is stronger: ionic or covalent?
What is ionic
What is the difference between valence electrons and other electrons?
Valence electrons are in the outermost shell, other electrons are in inner shells.
Valence electrons can participate in chemical bonding, other electrons can not
Which of the 4 categories of chemical reactions is 2AlPO4 +3Mg →2Al +Mg3(PO4)2
What is single replacement
How many valence electrons does Chlorine (Cl) have?
What is 7
What is the oxidation state of Aluminum (Al)?
What is +3
What is covalent
Will metals be cations or anions?
Cations
Which of the 4 categories of chemical reactions is CaCO3 → CaO + CO2
What is decomposition
How many valence electrons does silicon (Si) have?
What is 4
What is the oxidation state of phosphorus (P)?
What is -3
In ionic bonds, electrons are _________ whereas in covalent bonds electrons are ___________.
What is transferred, shared
Will nonmetals be cations or anions?
Anions
Which of the 4 categories of chemical reactions does a combustion reaction fall under?
What is synthesis