Chem1: Sticky Tape Lab

What subatomic particle(s) make up a neutral atom?

• equal number of neutrons (0)

• equal number of protons (+) and electrons (-)

• equal number of protons (+) and neutrons (0)

• equal number of neutrons (0) and electrons (-)

What is polarization?

• equal distribution of charges with a neutral object

• attracting and repelling of charges

• redistribution of charges within a neutral object.

• only occurs in positively or negatively charged objects

What happens to the electrons in a conductor?

• they move from one side of the object to the other

• they move from one side of the atom to the other

• they all get pulled into the nucleus

• they stay stuck in their given orbital

What happens to the electrons in an insulator?

• they stay stuck in their given orbital

• they move from one side of the object to the other

• they collapse in on the nucleus

• they move from one side of the atom to the other

True of False: electrons can move more freely inside some materials than others.

• true

• false

True or False: electrons move from atom to atom in insulators and move within their atoms in conductors.

• true

• false

True or False: the attraction of positive and negative particles was NOT strong enough to the move the tapes in the Sticky Tape Lab.

• true

• false

In the Sticky Tape Lab, what caused the attraction and repulsion between tapes?

• the movement of protons

• the movement of electrons

• the static position of the electrons

• nothing. it just happened by chance

What element type(s) make up Ionic Compounds?

• metal and nonmetal

• 2 nonmetals

• 2 metals

• 1 metal and 2 nonmetals

What happens if an Ionic Compounds is dissolved in water (aq)?

• atoms dissociate into ions and conduct electricity

• atoms dissociate into smaller molecules and conduct electricity

• atoms dissociate into smaller molecules and do NOT conduct electricity

• atoms dissociate into ions and do NOT conduct electricity