Periodic Table

Front

What is the group of elements known as noble gases?

Back

Noble gases are the elements in Group 18 of the periodic table, which are characterized by their lack of reactivity due to having a full valence shell.

Front

What is an example of a noble gas?

Back

Xenon is an example of a noble gas.

Front

What is the characteristic of alkali metals?

Back

Alkali metals are highly reactive and are found in Group 1 of the periodic table.

Front

Which element is considered an alkali metal?

Back

Sodium is considered an alkali metal.

Front

What does the number at the bottom of each square on the periodic table represent?

Back

The number at the bottom of each square on the periodic table represents the atomic mass of the element.

Front

What is the atomic number of an element?

Back

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

Front

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

Back

The main categories of elements in the periodic table are metals, nonmetals, and metalloids.

Front

What is the significance of the periodic table's arrangement?

Back

The periodic table is arranged by increasing atomic number, which reflects the periodic trends in element properties.

Front

What are transition metals?

Back

Transition metals are the elements found in Groups 3-12 of the periodic table, known for their ability to form variable oxidation states.

Front

What is the difference between atomic mass and atomic weight?

Back

Atomic mass is the mass of a single atom, while atomic weight is the average mass of an element's isotopes, weighted by their natural abundance.