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Description
Flashcards by surbeckkatie, updated more than 1 year ago
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Created by surbeckkatie
about 9 years ago
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| Question | Answer |
| Alkali Metals | Group 1 on the periodic table. |
| Alkaline Earth Metals | Group 2 on the Periodic Table |
| Anion | A negative ion that results from gaining electrons. |
| Atomic Radius | Half the distance between two nuclei of the same element when bonded together. (i.e. how big an atom is.) |
| What did Cannizzaro do? | Determined the atomic weight of 60 elements elements and the value for Avogadro's Number. |
| Cation Radii | A positive ion that results from losing electrons. |
| Electron Affinity | Energy released when another electron is added to an atom. |
| Electronegativity | Pull an atom has on the shared electrons in a bond with another atom. |
| Halogens | Group 17 on the Periodic Table |
| Ion | A group of atoms that carries an electric charge. |
| Ionization Energy | Energy required to remove the outermost electron from an atom. |
| What did Mendeleev do? | Created a Periodic Table of 63 elements ordered by atomic number. He also predicted numerous elements. |
| Metalloids | Elements with properties intermediate between those of metals and sold nonmetals. |
| What did Moseley do? | He discovered that the elements should be arranged by atomic number instead of atomic mass. |
| Noble Gases | Group 0 on the Periodic Table. |
| Periodic Table | An arrangement of elements in order of increasing atomic numbers. |
| Periodic Law | The properties of elements are periodic functions of their atomic numbers. (i.e. properties of elements appear in periodic patterns.) |
| Periodicity | Predictable patterns and trends on the periodic table. |
| Transition Metals | Groups 3-12 on the Periodic Table; 38 elements with valence electrons in more than 1 shell. |
| Valance Electrons | Electrons on the outermost energy level of an atom. |
| Periods | Rows on the Periodic Table. |
| Groups | Columns on the Periodic Table. |
| Atomic Number | Number of protons in an atom. |
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