March 1 and 2 Opening questions

Which is a compound?

• PN

• Po

Element or Compound? Cannot be broken down chemically into a more simple substance.

• Element

• Compound

Smallest piece of an element is a(n)

• molecule

• atom

Smallest piece of a compound that still retains/keeps its properties is a(n)

• atom

• molecule

Bonds require changes in the placement of the

• protons

• neutrons

• electrons

Covalent compounds occur because there is a ​ (a)   of electrons among the atoms while ionic bonds occur when there is a ​ ​ (b)   of electrons.

• sharing
• transfer

Ionic bonds occur between a ​ (a)   with a low ionization energy and a ​ (b)   with a high electronegativity; covalent bonds occur between two ​ (c)   or a ​ ​ (d)   combination

• metal
• nonmetal
• nonmetals
• nonmetal/metalloid
• metals
• metal/metalloid