Ionic Bonding

What is the charge on aluminum when it forms an ion?

• -1
• +1
• +3
• -3

An element gains one electron to form a stable ion.  To which group in the periodic table does the ion's element belong?

• 15
• 16
• 17
• 18

Which particle is negatively charged?

• proton
• atom
• neutron
• electron

According to the periodic table, which of the following metallic elements would have the least number of valence electrons?

• Be
• K
• Mg
• Ca

Chlorine is in Group 17 of the periodic table.  Which number of electrons must be gained or lost for Chlorine to form a complete valance shell?

• 1 gained
• 1 lost
• 7 gained 
• 7 lost

How does an atom of an element become an ion?

• The atom gains or loses only electrons
• The atom gains or loses only neutrons
• The atoms gains or loses either protons or neutrons
• The atom gains or loses only protons

As one goes from left to right in a period, which of the following is true?

• The number of protons decreases
• The number of valence electrons increases
• both a & b
• none of the above

What word is used to describe electrons in the outermost energy level?

• orbital
• ionic
• covalent
• valence

Which group of the periodic table contains atoms that will gain two electrons to form an octet?

• Group2
• Group 15
• Group 16
• Group 17

An atom of  calcium becomes a cation when it forms an ionic bond with two atoms of chlorine.  What is the charge on the calcium ion?

• +1
• +2
• +3
• +4