Advertisements
Advertisements
प्रश्न
The diagram represents an isotope of hydrogen [H]. Answer the following:
Atomic no. = 1
Mass no. = 1
If an isotope of ‘H’ has mass no. = 3, how many neutrons does it have.
Advertisements
उत्तर
Two neutrons. .........[∵ A = P + n]
APPEARS IN
संबंधित प्रश्न
Multiple Choice Questions
The sub atomic particle with negative charge is
WRITE SHORT ANSWER
Define the atomic mass number of an atom.
The mass number of an element is 23 and it contains 11 electrons. What is the number of protons and neutrons in it? What is the atomic number of the element?
Sulphur has an atomic number 16 and a mass of 32.
State the number of protons and neutrons in the nucleus of sulphur. Give a simple diagram to show the arrangement of electrons in an atom of sulphur.
Draw the orbital diagram of `""_20^40"Ca"^(2+)` ion and state the number of three fundamental particles present in it.
What is meant by the 'atomic number of an element'?
Match the atomic numbers 4,8,10,15 and 19 with each of the following:
An element which does not form ion
Draw the atomic diagram of the following element showing the distribution of – protons, neutrons and the electrons in the various shell of the atom.
Oxygen – \[\ce{^16_8O}\]
[The upper number represent the – mass number and the lower number represent the – atomic number e.g. calcium – mass number = 40, atomic number = 20]
Show diagrammatically the electron distributions in a sodium atom and a sodium ion and also give their atomic number.
When an atom gives electrons from its outermost shell, it becomes ______ charged.
