QS 11
What is the difference between the nucleus of a Rh-103 atom and the nucleus of a Pd-106 atom
106 has 1 more proton and 2 more neutrons
How many protons, neutrons, and electrons are in a single atom of Ni-58 if it has a -2 charge
28 P 30 N 30E
How many P,N&E are in a single atom of Ag-108 if it has a +2 charge?
47P 47N 45E
Which scientist first described charge as positive and negative
Ben Franklin
A positively charged rod is brought near a metal conductor. Which, if any, Particles move toward the rod?
Electrons
Who invented the electrophorus
Johanes Wilcke
A positive ion has
More electrons
If a slow stream of water is attracted to a rubber rod the slow stream of water ___ a positive rod
also be attracted to
If a slow stream of water is attracted to a rubber rod, the slow stream of water will _____ a positive rod
also be attracted to
If two objects electrically attract each other, then we can say for certain that
at least one object must be charged
A positively charged rod is brought near a metal conductor. The electrons in the conductor experience a force of
attraction
A positively charged rod is brought near a metal conductor. The electrons in the metal conductor experience a force of
attraction
balloons that seem to repel each other are
charged with the same type of charge
A negative ion has more
electrons than protons
To charge and electroscope positively by induction, you
ground the electroscope while bringing a negative rod near
Charge carriers in a metal are electrons rather than protons because electrons are
loosely bound
Rub a balloon with fur and the balloon becomes
negatively charged
Rub a plastic straw on your cotton shirt and the straw becomes
negatively charged
Rub your hair with a comb and the comb becomes
negatively charged
electrophorus out of a foam insulation board and aluminum pie pan and a styrofoam cup. When you charge the foam board by rubbing it with rabbit fur the foam board becomes
negatively charged
Touching the knob of a Leyden jar with a negatively charged rubber rod will make the inside of the Leyden jar
neutral
Construct a simple electrophorus out of a glass plate aluminum pie pan and styrofoam cup. Charge the glass plate by rubbing it with silk, set the pie pan on the glass plate becomes
positively charged
Holding the knob of a Leyden jar and touching the outer metal with a negatively charged rubber rod will make the inside of the leyden jar
positively charged
A negatively charged rod is brought near a metal conductor. The electrons in the conductor experience a force of
repulsion
Electroscope is charged negatively having by foil leaves that stand apart. As a negative charge is brought close the leaves
spread further apart
