From the given ions, which of the following correct compound would form? A) Fe^2+, Cl^-: FeCl
B)AL^3+ , O^2: AL3O2
C)Ni^2+ , O^2 : Ni2O2
D)Li^+ , N^3 : Li3N

Ions gain or lose electrons

Ithink the correct answer is 3

Each calcium ion has a charge of +2, which can also be written as ca2+. if those ions move out of the neuron and no other ions are moving, the neuron would lose the positive charge associated with those ions and become more negatively charged.

For lesson: cameras, plant presses, newspaper, paper towels, clip boards, pencils, calculators, field guides, metric measuring tapes, paper, transect squares, colored pencils, ph meters, light meters, computers, etc.for extension: baggies for soil samples collecting, distilled water, hand shovels, beakers, boiled rice, microscopes, well microscope slides or regular microscope slides with cover slips