History and Organization of Periodic Table Review

Front

What are the characteristics of noble gases?

Back

Colorless, odorless, and low reactivity.

Front

Which group of elements is known as alkali metals?

Back

Group 1 elements.

Front

How are elements organized in the periodic table?

Back

Based on their atomic number and chemical properties.

Front

Why are alkali metals the most reactive of all metals?

Back

They have 1 electron in their outer energy level.

Front

Which pair of elements would most likely have similar properties?

Back

Oxygen (O) and sulfur (S).

Front

What is the atomic number of an element?

Back

The number of protons in the nucleus of an atom.

Front

What is the significance of the periodic law?

Back

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

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 is the general trend in reactivity for alkali metals?

Back

Reactivity increases as you move down the group.

Front

What defines a metalloid?

Back

Elements that have properties of both metals and nonmetals.