Periodic Table

Front

What are alkali metals?

Back

Alkali metals are highly reactive elements found in group one of the periodic table, including lithium, sodium, and potassium.

Front

What is a period in the periodic table?

Back

A period is a horizontal row of elements in the periodic table.

Front

What does atomic mass represent?

Back

Atomic mass is the total number of protons and neutrons in an atom's nucleus.

Front

What are noble gases?

Back

Noble gases are elements that are gases at room temperature and have low boiling points, including helium, neon, and argon.

Front

What is an electron?

Back

An electron is a subatomic particle that has a negative charge.

Front

What is the atomic number?

Back

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

Front

What are non-metals?

Back

Non-metals are elements that typically have poor conductivity, are not malleable or ductile, and can be gases, liquids, or solids at room temperature.

Front

What are transition metals?

Back

Transition metals are elements found in groups 3-12 of the periodic table, known for their ability to form various oxidation states and colored compounds.

Front

What is the significance of group numbers in the periodic table?

Back

Group numbers indicate the number of valence electrons in the elements, which determines their chemical properties.

Front

What is a metalloid?

Back

Metalloids are elements that have properties of both metals and non-metals, such as silicon and germanium.