Advertisements
Advertisements
Question
What is meant by the 'atomic number of an element'?
Solution
An atomic number of an element is the number of protons in the nucleus of an atom.
APPEARS IN
RELATED QUESTIONS
In Milikan’s experiment, static electric charge on the oil drops has been obtained by shining X-rays. If the static electric charge on the oil drop is - 1.282 × 10-18C, calculate the number of electrons present on it.
Dalton said that ______ could not be divided.
Fill in the Blank of the Following Statement :
An atom has atomic mass number 23 and atomic number 11. The atom has .................... electrons.
Give reason
Actual atomic mass is greater than mass number.
Match the atomic numbers 4,8,10,15 and 19 with the following:
Element which can form trivalent ion
Match the atomic numbers 4,8,10,15 and 19 with the following:
Element with 6 valence electrons
Define the term ‘mass number’ of an atom.
The Atomic number of an element is 20. It has ______ valence electrons.
Mass No. 27 is for the element ______.
If element M has mass number 24 and atomic number 12, how many neutrons does its atom contain?
