Questions and Answers
What does the term 'Symbol' refer to?
What is a periodic table?
An arrangement of elements by increasing atomic number
What is an isotope?
One of a group of atoms of an element with the same number of protons and electrons but different number of neutrons
Define atomic mass.
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What is meant by 'Family' in the context of the periodic table?
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What is a metal?
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Define alloy.
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What is a nonmetal?
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What is a noble gas?
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Define inert.
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Study Notes
Element Classification Terms
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Symbol: Represents an element using one or two letters, providing a standardized shorthand for chemical identification.
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Periodic Table: Organized display of chemical elements, sorted by increasing atomic number, showcasing elemental properties and relationships.
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Isotope: Variation of an element's atoms that share the same number of protons and electrons but differ in neutrons, leading to different mass numbers.
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Atomic Mass: Calculated average mass of all isotopes of an element, reflecting the relative abundance of each isotope in nature.
Groupings in the Periodic Table
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Family: A column in the periodic table containing elements that exhibit similar chemical properties and behaviors, facilitating predictable patterns in reactivity.
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Metal: Typically solid at room temperature (except mercury), these elements are characterized by luster, malleability, ductility, and excellent electrical and thermal conductivity.
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Alloy: Combination of two or more metals, resulting in materials that often have enhanced properties compared to the individual elements.
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Nonmetal: Elements that lack the physical and chemical characteristics typical of metals; they may be gases, liquids, or solids at room temperature, and often are poor conductors of heat and electricity.
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Noble Gas: Group of elements that are inert due to their full outer electron shells; they do not commonly react with other substances, providing stability.
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Inert: Referring to elements or compounds that do not engage in chemical reactions under standard conditions, emphasizing their lack of reactivity.
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Explore essential terms in Chemistry Chapter 4 with these flashcards. Each card provides a key word or phrase alongside its definition, helping you to solidify your understanding of elemental classification and the periodic table. Perfect for students preparing for exams or needing a quick review.