Periodic Table and Periodic Trends

Front

What are the group 1 elements known as?

Back

Alkali metals.

Front

What did Dmitri Mendeleev arrange the elements by to observe similarities in chemical properties?

Back

Atomic mass.

Front

What do the spaces left in Mendeleev's periodic table represent?

Back

Undiscovered elements.

Front

Which element is located in period 4, group 4?

Back

Titanium.

Front

To what period and group does nitrogen belong?

Back

Period 2, Group 15.

Front

What is the periodic table?

Back

A tabular arrangement of chemical elements organized by increasing atomic number.

Front

What are transition metals?

Back

Elements found in groups 3-12 of the periodic table, known for their ability to form variable oxidation states.

Front

What are noble gases?

Back

Group 18 elements that are colorless, odorless, and inert under standard conditions.

Front

What is atomic number?

Back

The number of protons in the nucleus of an atom, which determines the element's identity.

Front

What is a period in the periodic table?

Back

A horizontal row of elements in the periodic table, indicating the number of electron shells.