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Element Symbols: A set of abbreviations for chemical elements.
Law of Constant Composition: A given compound always contains elements in exactly the same proportion by mass.
Daltons Atomic Theory: A theory established by John Dalton in the early eighteen-hundreds used to explain the nature of materials.
Atoms: Tiny particles that make up elements..
Compound: A substance made of two or more different elements joined together in a specific way.
Chemical Formula:a representation of a molecule in the which the symbols for the elements are used to indicate the types of atoms present and subscripts used to show the relative number of atoms.
Electrons:A negatively charged subatomic particle.
Nuclear atom:A modern concept of the atom as having a dense center of positive charge(the nucleus) surrounded by moving electrons.
Nucleus: The relatively small, dense center of positive charge in an atom.
Proton:A positively charged subatomic particle located in the atomic nucleus.
Neutron: A subatomic particle with no charge located in the atomic nucleus.
Isotopes: Atoms with the same number of protons but different numbers of neutrons.
Atomic Number: The number of protons in the nucleus of a given atom.
Mass Number: The total number of protons and neutrons in the nucleus of a given atom.
Periodic Table: a chart showing all the elements arranged in columns in such a way that all the elements in a given column exhibit similar chemical properties.
Groups: A vertical column of elements on the periodic table.
Alkali metal: A group 1 metal.
Alkaline earth metal: A group 2 metal.
Halogen: A group 7 metal.
Noble gas: A group 8 metal.
Transition metal: Several series of elements in which inner orbitals(d or f orbitals) are being filled.
Metal: An element that gives up electrons relatively easily and is typically lustrous, malleable, and a good conductor of heat and electricity.
Nonmetal: An element that does not exhibit metallic characteristics. Chemically, a typical nonmetal accepts electrons from a metal.
Metalloid: An element that has both metallic and nonmetallic properties.
Diatomic Molecules: A molecule composed of two atoms.
Ion: An atom or group of atoms that has a positive or negative charge.
Cation: A positively charged ion.
Anion: A negatively charged ion.
Ionic Compound: A compound that results when a metal reacts with a nonmetal to form cations and anions.
Across:6. | A group 1 metal. | 10. | A subatomic particle with no charge located in the atomic nucleus. | 12. | A vertical column of elements on the periodic table. | 13. | An element that has both metallic and nonmetallic properties. | 16. | A group 8 metal. | 19. | Atoms with the same number of protons but different numbers of neutrons. |
| 21. | A positively charged subatomic particle located in the atomic nucleus. | 22. | An element that gives up electrons relatively easily and is typically lustrous, malleable, and a good conductor of heat and electricity. | 23. | A modern concept of the atom as having a dense center of positive charge(the nucleus) surrounded by moving electrons. | 25. | Several series of elements in which inner orbitals(d or f orbitals) are being filled. | 26. | An atom or group of atoms that has a positive or negative charge. | 27. | A molecule composed of two atoms. |
| | Down:1. | A group 7 metal. | 2. | a chart showing all the elements arranged in columns in such a way that all the elements in a given column exhibit similar chemical properties. | 3. | A compound that results when a metal reacts with a nonmetal to form cations and anions. | 4. | A theory established by John Dalton in the early eighteen-hundreds used to explain the nature of materials. | 5. | A set of abbreviations for chemical elements. | 7. | A given compound always contains elements in exactly the same proportion by mass. | 8. | The total number of protons and neutrons in the nucleus of a given atom. | 9. | a representation of a molecule in the which the symbols for the elements are used to indicate the types of atoms present and subscripts used to show the relative number of atoms. |
| 11. | An element that does not exhibit metallic characteristics. Chemically, a typical nonmetal accepts electrons from a metal. | 14. | A negatively charged ion. | 15. | The relatively small, dense center of positive charge in an atom. | 17. | A substance made of two or more different elements joined together in a specific way. | 18. | The number of protons in the nucleus of a given atom. | 20. | Tiny particles that make up elements.. | 24. | A positively charged ion. |
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Across:6. | A group 1 metal. | 10. | A subatomic particle with no charge located in the atomic nucleus. | 12. | A vertical column of elements on the periodic table. | 13. | An element that has both metallic and nonmetallic properties. | 16. | A group 8 metal. | 19. | Atoms with the same number of protons but different numbers of neutrons. |
| 21. | A positively charged subatomic particle located in the atomic nucleus. | 22. | An element that gives up electrons relatively easily and is typically lustrous, malleable, and a good conductor of heat and electricity. | 23. | A modern concept of the atom as having a dense center of positive charge(the nucleus) surrounded by moving electrons. | 25. | Several series of elements in which inner orbitals(d or f orbitals) are being filled. | 26. | An atom or group of atoms that has a positive or negative charge. | 27. | A molecule composed of two atoms. |
| | Down:1. | A group 7 metal. | 2. | a chart showing all the elements arranged in columns in such a way that all the elements in a given column exhibit similar chemical properties. | 3. | A compound that results when a metal reacts with a nonmetal to form cations and anions. | 4. | A theory established by John Dalton in the early eighteen-hundreds used to explain the nature of materials. | 5. | A set of abbreviations for chemical elements. | 7. | A given compound always contains elements in exactly the same proportion by mass. | 8. | The total number of protons and neutrons in the nucleus of a given atom. | 9. | a representation of a molecule in the which the symbols for the elements are used to indicate the types of atoms present and subscripts used to show the relative number of atoms. |
| 11. | An element that does not exhibit metallic characteristics. Chemically, a typical nonmetal accepts electrons from a metal. | 14. | A negatively charged ion. | 15. | The relatively small, dense center of positive charge in an atom. | 17. | A substance made of two or more different elements joined together in a specific way. | 18. | The number of protons in the nucleus of a given atom. | 20. | Tiny particles that make up elements.. | 24. | A positively charged ion. |
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© 2014
PuzzleFast.com, Noncommercial Use Only