Periodic Table First Element Identification
The periodic table organizes chemical elements based on their atomic number, electron configuration, and recurring chemical properties. It starts with the element having the lowest atomic number.
Identifying the First Element
The atomic number of an element is determined by the number of protons in its nucleus. The element with the smallest atomic number is considered the first element in the periodic table.
Hydrogen (symbol H) has an atomic number of 1, meaning its nucleus contains one proton.
Conclusion
Based on its atomic number of 1, Hydrogen is recognized as the first element on the periodic table.
Similar Questions
- What element is a greenish yellow gas with a characteristic smell at room temperature?
- In the periodic table, as one goes down the group, which property doesn't change?
- Which of the following is a copper ore?
- Which scientist invented the Periodic table?
- The current Secretary General of United Nations Antonio Guterres belongs to:
Why do noble gases exist as gases at room temperature, while halogens exist as solids, liquids, or gases down the group?
Which factors are responsible for the increase in metallic character down a group in the periodic table?
- Which one of the following is not alkaline?
- What is the densest substance on Earth?
- The Law of Octaves' was proposed by:
Important Questions from Classification of Elements and Periodicity in Properties
What is the valency of Lithium?
The maximum number of electrons that can be accommodated in the outermost orbit is _______.
If the atomic size increases, the nonmetallic character will
State the electronic configuration of Argon.
The ore of aluminium ‘bauxite’ is:
