atomic number
/əˌtɒmɪk ˈnʌmbə/noun
उच्चारण अटॉमिक नम्ब
परमाणु क्रमांक
Advanced word
noun
- 1
[C] chemistry
the number of protons in the nucleus of an atom of a chemical element, which decides its position in the periodic table
परमाणु क्रमांक
- The atomic number of carbon is 6.
- Elements in the modern periodic table are arranged in order of increasing atomic number.
?Which word?
Do not confuse atomic number (the number of protons) and mass number (the total number of protons and neutrons).
Atomic number (protons की संख्या) और mass number (protons और neutrons की कुल संख्या) में भ्रमित न हों।
✓In the exam
General knowledge
Henry Moseley showed that atomic number, not atomic mass, is the true basis of the periodic table.
GK: Henry Moseley ने दिखाया कि periodic table का सही आधार atomic mass नहीं, बल्कि atomic number है।