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Atom/Periodic Table
Atom and Periodic Table Vocabulary
| Question | Answer |
|---|---|
| A _______________ is positive particle located in the nucleus | proton |
| A majority of the atom's mass is in the ____________. | nucleus |
| ________ and _________ add together to make the atomic mass. | Protons and neutrons |
| __________ are the negative particles in the orbitals. | Electrons |
| ______________________ are the neutral particles in the nuclues | Neutrons |
| __________ ________ are the outer electrons involved in bonding. | Valence electrons |
| A _____________ is a column on the periodic table. | group |
| A _______________ is a row on the periodic table. | period |
| Groups numbers determine the number of ______________ | valence electrons |
| A period number tells you the number of ___________. | orbitals. |
| The bold line divides the chart into __________, __________, and _____. | metals, nonmetals and metalloids |
| Group _________ is the most reactive because it has ____ valence electron. | 1; 1 |
| Group ____________ is the most stable because it has _____ valence electrons | 18; 8 |