Periodic Table Intro

Front

What is a metalloid?

Back

A metalloid is an element that has properties of both metals and nonmetals. Examples include silicon (Si) and arsenic (As).

Front

Which group of elements has properties opposite to metals?

Back

Nonmetals are the group of elements that have properties opposite to metals, such as being poor conductors of heat and electricity.

Front

What are the characteristics of metals?

Back

Metals are typically shiny, good conductors of heat and electricity, malleable, and ductile.

Front

Which element is classified as a nonmetal?

Back

Boron (B) is classified as a nonmetal, while hydrogen (H), rhenium (Re), and aluminum (Al) are metals.

Front

What percentage of elements in the periodic table are metals?

Back

Most elements in the periodic table, about 75%, are classified as metals.

Front

What is the periodic table?

Back

The periodic table is a tabular arrangement of chemical elements, organized by increasing atomic number, electron configuration, and recurring chemical properties.

Front

What are the three main categories of elements in the periodic table?

Back

The three main categories are metals, nonmetals, and metalloids.

Front

What is the significance of the atomic number?

Back

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

Front

What are alkali metals?

Back

Alkali metals are highly reactive metals found in Group 1 of the periodic table, including lithium (Li), sodium (Na), and potassium (K).

Front

What are noble gases?

Back

Noble gases are a group of nonmetals in Group 18 of the periodic table, known for their lack of reactivity due to having a full valence shell.