Bond Basics
What type of bond involves the transfer of electrons?
Ionic
Name this compound: NaCl
Sodium chloride, table salt
Which type of bond usually has a higher melting point- Ionic or Covalent?
Ionic
How many electrons are shared in a single bond?
2 Electrons (1 pair)
What type of bond holds atoms together in table sugar?
Covalent
What type of bond involves the sharing of electrons?
Covalent
Name this compound: CO2
Carbon Dioxide
False
How many pairs of electrons are shared in a double bond?
2 Pairs (4 electrons)
What type of bond holds atoms together in table salt?
Ionic
Which particles are involved in bonding- protons, neutrons, or electrons?
Electrons
Write the formula for: Calcium Fluoride
CaF2
Ionic compounds form a repeating 3D pattern called a?
Crystal Lattice
H-H
Why does salt conduct electricity in water but sugar does not?
Ions move freely in water; covalent molecules don't form ions
What does the Octet Rule state?
Atoms want 8 electrons in their outer shell.
Name this compound: PCl3
Phosphorus trichloride
Why are ionic compounds brittle?
Like charges repel when the lattice shifts.
Which atom in H2O has lone pairs of electrons?
Oxygen
What type of element (Metal or Nonmetal) usually loses electrons?
Metals
When a metal reacts with a nonmetal, which one gains electrons?
The Nonmetal
Write the formula for: Aluminum Oxide
Al2O3
Why do covalent bonds usually exist in gases or liquids?
Weaker forces holding them together
Draw the Lewis Dot Structure for: CO2
O=C=O
Why are the noble gases unreactive?
Their outer shells are already full. (8 valence electrons)