Ionic compounds and formulas

What is an ionic compound?

• Compounds consisting of ions

• Elements consisting of compounds

• An atom that has converted to an ion

• When the mass number of a compound decreases by 2

Ionic compounds consist of ___________ and _____________

• Elements; Compounds

• Metals; Non-metals

• Alpha particles; Beta particles

• Beta particles; Gamma particles

What is an ionic formula?

• An element symbol for an atom

• The formula of two cations combined together

• A chemical formula for ionic compounds

• The formula describing the change of a cation to an anion

An ionic formula consists of

• Only cations

• Only anions

• Neither cations or anions

• Both cations and anions

The ionic compound of
Barium cations ( $Ba^{2+}$ ) and Chloride anions ( $Cl^-$  )

• Barium Chloride

• Chloride Barium

•  $Ca^{2+}$   $Cl^-$  

•  $Ca_2Cl$  

The ionic compound of
Aluminium cations ( $Al^{3+}$ ) and Oxide anions ( $O^{2-}$  )

•  $Al^{3+}$   $O^{2-}$  

• Oxide Aluminium

• Aluminium Oxide

•  $Al_2O_3$  

The ionic formula for 
Potassium cations ( $K^+$ ) and Oxide anions ( $O^{2-}$  )

•  $K^+$   $O^{2-}$  

•  $KO_2$  

• Potassium Oxide

•  $K_2O$  

The ionic formula for 
Lithium cations ( $Li^+$ ) and Phosphide anions ( $P^{3-}$  )

•  $Li^+$   $P^{3-}$  

•  $Li_3P$  

•  $LiP_3$  

• Lithium Phosphide

The ionic formula for 
Calcium cations ( $Ca^{2+}$ ) and Sulfide anions ( $S^{2-}$  )

•  $Ca^{2+}$   $S^{2-}$  

•  $CaS$  

•  $Ca_2S_2$  

• Calcium Sulfide

What is the ionic compound AgBr?

• Silver Bromide

• Argon Bromine

• Arsenic Barium

• Astatine Bromine