Periodic Table

Front

What is a metalloid?

Back

A metalloid is an element that has properties intermediate between metals and nonmetals. Examples include silicon and germanium.

Front

Which element is a metalloid?

Back

Polonium is considered a metalloid.

Front

What is the least reactive element in the periodic table?

Back

Neon (Ne) is the least reactive element.

Front

Who is credited with creating the first periodic table by arranging elements by atomic number?

Back

Henry Moseley is credited with this arrangement.

Front

Which element is similar to Lithium (Li)?

Back

Potassium (K) is similar to Lithium.

Front

Which element is similar to Magnesium (Mg)?

Back

Calcium (Ca) is similar to Magnesium.

Front

What is the periodic law?

Back

The periodic law states that the properties of elements are a periodic function of their atomic numbers.

Front

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

Back

The main categories are metals, nonmetals, and metalloids.

Front

What is the significance of the atomic number?

Back

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

Front

What are alkali metals?

Back

Alkali metals are the elements in Group 1 of the periodic table, known for being highly reactive and having one electron in their outer shell.