What is the atomic number of the element aluminum?

The correct answer is 13.

In News

• Aluminum is a widely used metal due to its properties such as being lightweight, non-corrosive, and highly conductive.

Key Points

• The atomic number of aluminum (Al) is 13.
• Aluminum belongs to the boron group in the periodic table.
• It is the third most abundant element in the Earth's crust.
• Aluminum is known for its lightweight and high strength-to-weight ratio.

Additional Information

• Atomic Number
  • The atomic number of an element is the number of protons found in the nucleus of an atom of that element.
  • It determines the chemical properties of the element and its place in the periodic table.
• Periodic Table
  • The periodic table is a tabular arrangement of the chemical elements, ordered by their atomic number, electron configurations, and recurring chemical properties.
  • Elements are presented in order of increasing atomic number.
• Boron Group
  • The boron group, also known as group 13, consists of boron (B), aluminum (Al), gallium (Ga), indium (In), and thallium (Tl).
  • These elements have three valence electrons.
• Properties of Aluminum
  • Aluminum is a silvery-white, soft, nonmagnetic, and ductile metal in the boron group.
  • It is known for its low density and ability to resist corrosion.
  • It is used in many industries including aerospace, transportation, and construction due to its high strength-to-weight ratio.