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Atoms and Elements
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percent abundance:The percentage of atoms of a particular isotope
molar mass:mass, in grams, of one mole of that substance
isotope:atoms with the same atomic number but different mass numbers
atomic number:number of protons in the nuclei of an atom
mass number:the sum of protons and neutrons
mole:the amount of substance that contains as many atoms, molecules, ions, or other nanoscale units as there are atoms in exactly 12g of carbon-12
proton:positively charged particle
ions:electrically charged particle
radioactivity:emission of rays by a substance
halogens:nonmetal elements that are forming diatomic molecules and are highly reactive
Atoms and Elements
Across:2. | atoms with the same atomic number but different mass numbers | 5. | emission of rays by a substance | 8. | nonmetal elements that are forming diatomic molecules and are highly reactive | 9. | mass, in grams, of one mole of that substance | 10. | the amount of substance that contains as many atoms, molecules, ions, or other nanoscale units as there are atoms in exactly 12g of carbon-12 |
| | Down:1. | number of protons in the nuclei of an atom | 3. | The percentage of atoms of a particular isotope | 4. | the sum of protons and neutrons | 6. | electrically charged particle | 7. | positively charged particle |
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© 2012
PuzzleFast.com, Noncommercial Use Only
Atoms and Elements
Across:2. | atoms with the same atomic number but different mass numbers | 5. | emission of rays by a substance | 8. | nonmetal elements that are forming diatomic molecules and are highly reactive | 9. | mass, in grams, of one mole of that substance | 10. | the amount of substance that contains as many atoms, molecules, ions, or other nanoscale units as there are atoms in exactly 12g of carbon-12 |
| | Down:1. | number of protons in the nuclei of an atom | 3. | The percentage of atoms of a particular isotope | 4. | the sum of protons and neutrons | 6. | electrically charged particle | 7. | positively charged particle |
| |
© 2012
PuzzleFast.com, Noncommercial Use Only