Periodic Table of Elements

Front

What is the Periodic Table of Elements?

Back

A tabular arrangement of chemical elements, organized by increasing atomic number, electron configuration, and recurring chemical properties.

Front

What are groups in the Periodic Table?

Back

Vertical columns in the Periodic Table that contain elements with similar chemical properties.

Front

What are periods in the Periodic Table?

Back

Horizontal rows in the Periodic Table that indicate the number of electron shells in the elements.

Front

Which elements are considered Noble Gases?

Back

Helium (He), Neon (Ne), Argon (Ar), Krypton (Kr), Xenon (Xe), and Radon (Rn). They are known for being nonreactive.

Front

What are Alkali Metals?

Back

Elements in Group IA of the Periodic Table, known for being highly reactive, especially with water. Examples include Lithium (Li), Sodium (Na), and Potassium (K).

Front

What are Halogens?

Back

Elements in Group VIIA of the Periodic Table, known for being very reactive nonmetals. Examples include Fluorine (F), Chlorine (Cl), and Bromine (Br).

Front

What is the significance of atomic number in the Periodic Table?

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The atomic number represents the number of protons in an atom's nucleus and determines the element's identity.

Front

What is the difference between metals and nonmetals?

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Metals are typically shiny, conductive, and malleable, while nonmetals are usually dull, insulative, and brittle.

Front

What are metalloids?

Back

Elements that have properties of both metals and nonmetals, found along the zig-zag line on the Periodic Table. Examples include Silicon (Si) and Arsenic (As).

Front

What is the reactivity trend of Alkali Metals?

Back

Reactivity increases as you move down the group in the Periodic Table.