Periodic Table

Front

What is the atomic number of Hydrogen?

Back

1

Front

What classification does Hydrogen belong to?

Back

Nonmetal

Front

What are elements in group 2 of the periodic table called?

Back

Alkaline Earth Metals

Front

Are noble gases reactive?

Back

No, they are not reactive.

Front

What are elements in group 17 of the periodic table called?

Back

Halogens

Front

Who organized the first periodic table by arranging elements by mass?

Back

Dmitri Mendeleev

Front

What is the general characteristic of alkali metals?

Back

They are highly reactive and have one electron in their outer shell.

Front

What is the general characteristic of alkaline earth metals?

Back

They are reactive but less so than alkali metals and have two electrons in their outer shell.

Front

What are transition metals known for?

Back

They are known for their ability to form various oxidation states and colored compounds.

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.