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Atom crossword
16
Proton : Adding a _____ to an atom makes a new element
Electron cloud : where electrons are in an atom
Neutron : Uncharged particles
Nucleus : The center of an atom
Isotope : The number of neutrons in a nucleus will determine the ____ of that element
Matter : All ____ is made up of elements
Dalton : His theory that all matter is made of atoms is based on evidence from experiments
Thompson : His experiments showed that atoms are made of smaller particles
Rutherford : His experiments suggested that atoms have a nucleus
Bohr : In his model, electrons moved around the nucleus in a circular motion
Periodic : The ______ table of the elements
Alkali : ____ metals are very reactive
Orbitals : Electrons are found in shells or _____
118 : There are _____ known elements (number)
Unique : Every element is _____
Atomic : The _____ number is the number of protons in an element
Basic : atoms are the _____ unit of matter
Three : Atoms are made up of _____ particles
Mass : protons and neutrons have approximately the same _____
Electrons : Have a negative charge
Atom crossword
Across:3. | In his model, electrons moved around the nucleus in a circular motion | 4. | ____ metals are very reactive | 5. | Adding a _____ to an atom makes a new element | 6. | The _____ number is the number of protons in an element |
| 9. | Electrons are found in shells or _____ | 10. | His experiments showed that atoms are made of smaller particles | 12. | His theory that all matter is made of atoms is based on evidence from experiments | 14. | His experiments suggested that atoms have a nucleus |
| | Down:1. | Have a negative charge | 2. | where electrons are in an atom | 3. | atoms are the _____ unit of matter | 5. | The ______ table of the elements |
| 7. | All ____ is made up of elements | 8. | The number of neutrons in a nucleus will determine the ____ of that element | 11. | protons and neutrons have approximately the same _____ | 13. | The center of an atom |
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PuzzleFast.com, Noncommercial Use Only
Atom crossword
Across:3. | In his model, electrons moved around the nucleus in a circular motion | 4. | ____ metals are very reactive | 5. | Adding a _____ to an atom makes a new element | 6. | The _____ number is the number of protons in an element |
| 9. | Electrons are found in shells or _____ | 10. | His experiments showed that atoms are made of smaller particles | 12. | His theory that all matter is made of atoms is based on evidence from experiments | 14. | His experiments suggested that atoms have a nucleus |
| | Down:1. | Have a negative charge | 2. | where electrons are in an atom | 3. | atoms are the _____ unit of matter | 5. | The ______ table of the elements |
| 7. | All ____ is made up of elements | 8. | The number of neutrons in a nucleus will determine the ____ of that element | 11. | protons and neutrons have approximately the same _____ | 13. | The center of an atom |
| |
© 2016
PuzzleFast.com, Noncommercial Use Only