For each of the following elements, use the tables on the...

For each of the following elements, use the tables on the inside cover of this book to give the chemical symbol, atomic number, and group number of each element, and to specify whether the element is a metal, nonmetal, or metalloid.
a. lithium
b. arsenic
c. radon
d. radium
e. germanium

Key Concepts

Periodic Table

The periodic table is an organized arrangement of all known chemical elements, where elements are placed in order based on increasing atomic number. It groups elements by similar chemical properties and periodic trends that help in predicting element behaviors and interactions, making it a fundamental tool in chemistry.

Chemical Symbol

A chemical symbol is a one- or two-letter abbreviation that represents a chemical element. These symbols, often derived from the element's English or Latin name, provide a concise and universal way to denote elements in chemical formulas and equations.

Atomic Number

The atomic number of an element is the number of protons found in the nucleus of an atom of that element. It uniquely identifies the element and determines its position in the periodic table, as the table is arranged in order of increasing atomic numbers.

Group Number

The group number refers to the vertical columns in the periodic table. Elements within the same group usually share similar chemical and physical properties because they have the same number of electrons in their outermost shell, which influences how they interact with other elements.

Element Classification

Element classification involves categorizing elements as metals, nonmetals, or metalloids. This classification is based on shared physical and chemical properties, with metals generally exhibiting conductivity and luster, nonmetals displaying more varied properties, and metalloids having intermediate characteristics.

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