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The Structure Of An Atom
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Atom:The smallest part of an element that still has the same properties as the element. Made of protons, neutrons and electrons.
Proton:A positively charged particle found in the nucleus of an atom.
Neutron:A neutrally charged particle found in the nucleus of an atom.
Electron:A negatively charged particle found on the outside of an atom, in the electron cloud.
Nucleus:The dense, positive center of an atom; protons and neutrons are found here.
electron cloud:The large, negatively charged region surrounding the nucleus. Electrons are found here, where they orbit in different energy levels.
Isotope:An element that has a specified mass (ex. Oxygen-18).
Ion:An atom that has a charge not equal to zero (protons and electrons are unequal).
nuclear notation:A way of writing the information about an element using the symbol, atomic mass, and atomic number.
isotope notations:A way of writing the information about an element using only the name and the atomic mass.
atomic number:The number of protons in one atom of an element. Found at the top of the box on the Periodic Table.
atomic mass:The mass of an atom, roughly equal to the number of protons and neutrons in an atom. Found on the bottom of the box on the Periodic Table.
chemical symbol:The one or two-letter abbreviation for the name of an element, found on the Periodic Table. The second letter in a chemical symbol must be lowercase.
energy level:A subset of the electron cloud, where electrons can be found. In the Bohr Model, it is represented as a ring around the nucleus.
Sublevel:A subset of an energy level, represented by a number and a letter (ex: 1s, 3p, 4f)
electron configuration:How the electrons are distributed among different energy levels and/or sublevels. Can be determined using the Aufbau (arrow) chart. [ex. 1s2 2s2 2p6 3s1 for sodium]
aufbau:A chart composed of sublevels and arrows that predicts how electrons will be distributed in the electron cloud.
atomic mass unit:The mass of one proton or one neutron, both of which are extremely small. Atomic mass is measured in these units.
Charge:How positive or negative something is.
The Structure Of An Atom
Across:2. | The number of protons in one atom of an element. Found at the top of the box on the Periodic Table. | 8. | A positively charged particle found in the nucleus of an atom. | 10. | How positive or negative something is. | 12. | A way of writing the information about an element using the symbol, atomic mass, and atomic number. | 14. | A negatively charged particle found on the outside of an atom, in the electron cloud. |
| 15. | A chart composed of sublevels and arrows that predicts how electrons will be distributed in the electron cloud. | 16. | An atom that has a charge not equal to zero (protons and electrons are unequal). | 17. | The dense, positive center of an atom; protons and neutrons are found here. | 18. | A neutrally charged particle found in the nucleus of an atom. |
| | Down:1. | A subset of an energy level, represented by a number and a letter (ex: 1s, 3p, 4f) | 3. | A way of writing the information about an element using only the name and the atomic mass. | 4. | The large, negatively charged region surrounding the nucleus. Electrons are found here, where they orbit in different energy levels. | 5. | How the electrons are distributed among different energy levels and/or sublevels. Can be determined using the Aufbau (arrow) chart. [ex. 1s2 2s2 2p6 3s1 for sodium] | 6. | An element that has a specified mass (ex. Oxygen-18). |
| 7. | The mass of one proton or one neutron, both of which are extremely small. Atomic mass is measured in these units. | 9. | The one or two-letter abbreviation for the name of an element, found on the Periodic Table. The second letter in a chemical symbol must be lowercase. | 11. | The smallest part of an element that still has the same properties as the element. Made of protons, neutrons and electrons. | 13. | The mass of an atom, roughly equal to the number of protons and neutrons in an atom. Found on the bottom of the box on the Periodic Table. | 14. | A subset of the electron cloud, where electrons can be found. In the Bohr Model, it is represented as a ring around the nucleus. |
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PuzzleFast.com, Noncommercial Use Only
The Structure Of An Atom
Across:2. | The number of protons in one atom of an element. Found at the top of the box on the Periodic Table. | 8. | A positively charged particle found in the nucleus of an atom. | 10. | How positive or negative something is. | 12. | A way of writing the information about an element using the symbol, atomic mass, and atomic number. | 14. | A negatively charged particle found on the outside of an atom, in the electron cloud. |
| 15. | A chart composed of sublevels and arrows that predicts how electrons will be distributed in the electron cloud. | 16. | An atom that has a charge not equal to zero (protons and electrons are unequal). | 17. | The dense, positive center of an atom; protons and neutrons are found here. | 18. | A neutrally charged particle found in the nucleus of an atom. |
| | Down:1. | A subset of an energy level, represented by a number and a letter (ex: 1s, 3p, 4f) | 3. | A way of writing the information about an element using only the name and the atomic mass. | 4. | The large, negatively charged region surrounding the nucleus. Electrons are found here, where they orbit in different energy levels. | 5. | How the electrons are distributed among different energy levels and/or sublevels. Can be determined using the Aufbau (arrow) chart. [ex. 1s2 2s2 2p6 3s1 for sodium] | 6. | An element that has a specified mass (ex. Oxygen-18). |
| 7. | The mass of one proton or one neutron, both of which are extremely small. Atomic mass is measured in these units. | 9. | The one or two-letter abbreviation for the name of an element, found on the Periodic Table. The second letter in a chemical symbol must be lowercase. | 11. | The smallest part of an element that still has the same properties as the element. Made of protons, neutrons and electrons. | 13. | The mass of an atom, roughly equal to the number of protons and neutrons in an atom. Found on the bottom of the box on the Periodic Table. | 14. | A subset of the electron cloud, where electrons can be found. In the Bohr Model, it is represented as a ring around the nucleus. |
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© 2013
PuzzleFast.com, Noncommercial Use Only