Question
GeneralGeneralGeneral

how many elements are there in the periodic table

Verified Answer

The modern periodic table contains 118 confirmed chemical elements. These elements are arranged according to their atomic number, which represents the number of protons present in the nucleus of an atom.

The first element is Hydrogen with atomic number 1, while the last confirmed element is Oganesson with atomic number 118.

The periodic table is organized into:

  • 7 periods (horizontal rows)

  • 18 groups (vertical columns)

Elements are mainly classified into:

  • Metals

  • Non-metals

  • Metalloids

Some elements occur naturally, while others are artificially created in laboratories through nuclear reactions.

Examples of Important Elements:

  • Hydrogen (H)

  • Oxygen (O)

  • Carbon (C)

  • Iron (Fe)

  • Gold (Au)

The periodic table helps scientists:

  • Study properties of elements

  • Predict chemical behavior

  • Understand chemical reactions

  • Classify elements systematically

Scientists continue researching superheavy synthetic elements, but only 118 elements are officially recognized currently.

In conclusion, the periodic table presently contains 118 elements arranged scientifically according to their atomic numbers and chemical properties.