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Ch.1 - Introduction: Matter, Energy, and Measurement
Chapter 1, Problem 17c

Give the chemical symbol or name for the following elements, as appropriate: c. potassium

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Key Concepts

Here are the essential concepts you must grasp in order to answer the question correctly.

Chemical Symbols

Chemical symbols are one- or two-letter abbreviations used to represent chemical elements. Each symbol is unique to an element and is derived from its English or Latin name. For example, the symbol for potassium is 'K', which comes from the Latin word 'kalium'. Understanding chemical symbols is essential for reading and writing chemical formulas.
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Periodic Table of Elements

The periodic table is a systematic arrangement of all known chemical elements, organized by increasing atomic number. Each element is placed in a specific location based on its properties, such as reactivity and electron configuration. Potassium is located in Group 1 (alkali metals) of the periodic table, which helps in understanding its chemical behavior and reactivity.
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Element Properties

Elements have distinct physical and chemical properties that define their behavior in reactions. Potassium, for instance, is a soft, silvery-white metal that is highly reactive, especially with water. Recognizing these properties is crucial for predicting how elements will interact with one another in chemical reactions.
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Related Practice
Textbook Question

Classify each of the following as a pure substance or a mixture. If a mixture, indicate whether it is homogeneous or heterogeneous: (b) sugar crystals

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Textbook Question

Classify each of the following as a pure substance or a mixture. If a mixture, indicate whether it is homogeneous or heterogeneous: (c) a hardboiled egg

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Textbook Question

Classify each of the following as a pure substance or a mixture. If a mixture, indicate whether it is homogeneous or heterogeneous: (d) sawdust.

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Textbook Question

Give the chemical symbol or name for each of the following elements, as appropriate: a. carbon

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Textbook Question

You are hiking in the mountains and find a shiny gold nugget. It might be the element gold, or it might be “fool’s gold,” which is a nickname for iron pyrite, FeS2. Which of the following physical properties do you think would help determine if the shiny nugget is really gold—appearance, melting point, density, or physical state?

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Textbook Question

In the process of attempting to characterize a substance, a chemist makes the following observations: The substance is a silvery white, lustrous metal. It melts at 649 °C and boils at 1105 °C. Its density at 20 °C is 1.738 g/cm3. The substance burns in air, producing an intense white light. It reacts with chlorine to give a brittle white solid. The substance can be pounded into thin sheets or drawn into wires. It is a good conductor of electricity. Which of these characteristics are physical properties, and which are chemical properties?

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