Chemistry Chapter 4 Flashcards

Questions and Answers

What does the term 'Symbol' refer to?

An arrangement of elements by increasing atomic number

One or two letters that represent the name of an element (correct)

A group of metals

A mixture of two or more metals

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.

The average mass of all the isotopes of a particular element Signup and view all the answers

What is meant by 'Family' in the context of the periodic table?

A group of elements with similar properties arranged together in a column of the periodic table Signup and view all the answers

What is a metal?

One of a group of elements that is usually solid at room temperature, often shiny, and carries heat and electricity well Signup and view all the answers

Define alloy.

A mixture of two or more metals Signup and view all the answers

What is a nonmetal?

One of a group of elements with properties unlike metals Signup and view all the answers

What is a noble gas?

One of a group of elements made up of gases that do not combine with other materials under ordinary conditions Signup and view all the answers

Define inert.

Inactive; lacking the power to move Signup and view all the answers

Study Notes

Element Classification Terms

Symbol: Represents an element using one or two letters, providing a standardized shorthand for chemical identification.
Periodic Table: Organized display of chemical elements, sorted by increasing atomic number, showcasing elemental properties and relationships.
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.
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

Family: A column in the periodic table containing elements that exhibit similar chemical properties and behaviors, facilitating predictable patterns in reactivity.
Metal: Typically solid at room temperature (except mercury), these elements are characterized by luster, malleability, ductility, and excellent electrical and thermal conductivity.
Alloy: Combination of two or more metals, resulting in materials that often have enhanced properties compared to the individual elements.
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.
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.
Inert: Referring to elements or compounds that do not engage in chemical reactions under standard conditions, emphasizing their lack of reactivity.

Description

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.