Why is the phrase 'Atomic number determines the element' a fundamental concept in chemistry?

A.VERIFIED ANSWERfact-checked by tutors

This phrase is fundamental because the atomic number, which is the number of protons, uniquely defines an element's identity and its chemical properties. Any change in the number of protons results in a different element.

Suggested Q&A

CHEMISTRY · CLASS 11

ChemistryCLASS 11
2.8×10⁻³ mol of CO₂ is left after removing 10²¹ molecules from its ‘x’ mg sample. Find x. (Nₐ = 6.02×10²³ mol⁻¹)
ChemistryCLASS 11
Total number of isomers, considering both structural and stereoisomers of cyclic ethers with the molecular formula C₄H₈O is
ChemistryCLASS 11
What does 1s, 2s, 2p, 3s, 3p mean?
ChemistryCLASS 11
Why is it incorrect to say that an electron is 'stationary' in an atom?
ChemistryCLASS 11
Imagine you have an unknown element. What single piece of information about its subatomic particles would immediately allow you to identify the element?
ChemistryCLASS 11
How does the concept of 'electron shells' or 'energy levels' further refine our understanding of electron 'orbiting'?