Advertisements
Advertisements
प्रश्न
Give the following a suitable word/phrase.
The sum of the number of protons and neutrons of an atom.
Advertisements
उत्तर
Mass number
APPEARS IN
संबंधित प्रश्न
Fill in the blank
Neutrons are .......................... particles having mass equal to that of protons.
Give the following a suitable word/phrase
The sub-atomic particle with negative charge and negligible mass.
Give the following a suitable word/phrase.
Protons and neutrons present in the nucleus.
Multiple Choice Questions
number of valence electrons present in magnesium is
FILL IN THE BLANK
The γ-rays are............................ radiations, like light.
WRITE SHORT ANSWER
Name the isotopes of hydrogen.
State whether the following statement is true or false :
The anode rays obtained from all the gases consist of positively charged particles called protons.
The particle not present in an ordinary hydrogen atom is :
Select the correct answer from the choice in the bracket to complete the sentence:
An element ‘X’ has six electrons in its outer or valence shell. Its valency is __________.
What is meant by the term subatomic particles?
