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| The 14 elements with atomic numbers from 90 to 103. |
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| The 14 elements from with atomic numbers from 58 to 71. |
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| The physical and chemical properties of the elements are periodic functions of their atomic numbers. |
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| The arragement of the elements in order of their atomic numbers so that elements with similar properties fall in the same column, or group. |
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| The elements of group 1 in the perioidc table (lithium, sodium, potassium, ubidium, cesium, and francium |
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| The elements of Group 2 in the periodic table (beryllium, magnesium, calcium, strontium, barium, and radium) |
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| The elements of group 17 (fluorine, chlorine, bromine, iodine, asatine) |
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| The p-block elements together with the s-block elements. |
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| The d-block elements are metals with typical metallic properties and are often referred to as |
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| One-half the distance between the nuclei of identical atoms that are bonded together. |
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| The energy change that occurs when an electron is acquired by a neutral atom. |
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| The measure of the ability of an atom in a chemical compound to attract electrons. |
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| An atom or group of bonded atoms that has a positive or negative charge. |
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| Any process that results in the formation of an ion. |
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| The energy required to remove one electron from a neutral atom of an element. |
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| The electrons available to be lost, gained, or shared in the formation of chemical compounds. |
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