What is the name of this formula: NaI?
Sodium iodide
Li2S
Number of valence electrons for Tellurium
Metal and Nonmetal
Explain the criss cross method
Criss cross method is used when making the formula from ionic compounds. The oxidation numbers of atoms(element) (Mg 2+) (O2-) are transferred or switched to opposite atom(element) in the correct ionic formula format (Mg1) and (O2).
MgO2What is the formula for the compound sodium nitride?
Na1+
N3-
Na3N?
does the atom gain or lose electrons?
31 protons
loses 3 electrons
28 electrons
What is the formula of the compound formed between potassium and chlorine?
KCl
What is the name of the compound LiCl
Lithium Chloride
List three metals.
any elements from group 1,2, and 13
How many electrons are transferred in the ionic compound Al2O3.
draw the Lewis dot structure if you aren't sure
Aluminum transfer's 6 electrons to 3 atoms of Oxygen.
What is the formula for Calcium Iodide or Calcium ion and Iodine Ion?
CaI2
List 3 anions
any atoms/elements from group
True or False
Anions can ionically bond with Anions. Why or why not?
False. Because anions have a negative charge and ionic bonds have to have opposite charges. So an ANION HAS TO IONICALLY BOND WITH A CATION (positive charge)
What is the chemical formula for the compound created from Potassium and Oxygen
K2O
Identify the names of the families of the periodic table
group 1- alkaline metals
group 2- Alkali Earth Metals
Group 13- Boron Group
Group 14- Carbon Group
Group 15- Nitrogen Group
Group 16- Oxygen Group
Group 17- Halogens
Group 18- Noble gases