| Sections | |||
|---|---|---|---|
| Periodic Table | 28 mins | 0 completed | Learn |
| Mole Concept | 37 mins | 0 completed | Learn Summary |
| Isotopes | 12 mins | 0 completed | Learn Summary |
| Mass Spectrometry | 9 mins | 0 completed | Learn |
| Subatomic Particles | 8 mins | 0 completed | Learn |
| Atomic Theory | 16 mins | 0 completed | Learn |
| Thomson's Cathode Ray Tube Experiment | 8 mins | 0 completed | Learn |
| Oil Drop Experiment | 7 mins | 0 completed | Learn |
| The Chadwick Neutron Experiment | 6 mins | 0 completed | Learn |
| Gold Foil Experiment | 10 mins | 0 completed | Learn |
| End of Chapter 2 Problems | 28 mins | 0 completed | Learn |
| Additional Guides |
|---|
| Periodic Table Charges |
| Calculating Molar Mass |
| Calculating Grams to Moles |
Fill in the gaps in the following table:
| Symbol | P3- | |||
| Protons | 35 | 49 | ||
| Neutrons | 45 | 66 | 118 | |
| Electrons | 46 | 76 | ||
| Mass number | 31 | |||
| Net charge | 1- | 3+ |
Complete the fourth row of the table for the number of electrons.
Fourth row is looking for the electrons of each atom. Recall that the number of electrons is equal to the number of protons for neutral atoms
# of electrons = # protons for neutral atoms
For the fourth row, we must determine each # of protons of each atom.
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