In the phet simulation, click the green + symbol to expand the net charge tab. drag protons, neutrons, and electrons and notice how this affects the information displayed in the tab. for extra conceptual practice, click on the game menu and test your knowledge on the first difficulty rating. rank the atoms based on charge from most negative to most positive.
rank the following atoms from most negative to most positive charge. to rank items as equivalent, overlap them.

a) 9 protons, 11 neutrons, 10 electrons
b) 4 protons, 4 neutrons, 2 electrons
c) 8 protons, 8 neutrons, 10 electrons
d) 3 protons, 3 neutrons, 3 electrons
e) 1 proton, 0 neutrons, 0 electrons

Which statement describes james chadwick’s discovery.

The table compares the number of electrons in two unknown neutral atoms. comparison of electrons atom number of electrons a 9 d 11 use this information to determine the number of valence electrons in the atoms. which of the following correctly compares the stability of tthe table compares the number of electrons in two unknown neutral atoms. comparison of electrons atom number of electrons a 9 d 11 use this information to determine the number of valence electrons in the atoms. which of the following correctly compares the stability of the two atoms? both are unreactive. both are highly reactive. a is unreactive and d is reactive. a is reactive and d is unreactive.

To find the work done, the force exerted and distance moved are multiplied. a couch is moved twice before you are happy with its placement. the same force was used to move the couch both times. if more work is done the first time it is moved, what do you know about the distance it was moved? a) when more work was done, the couch was moved the same distance. b) when more work was done, the couch was moved less. c) when more work was done, the couch was moved further. d) when more work was done, the couch wasn't moved at all.