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प्रश्न
Which of the following statement is always correct?
विकल्प
an atom has equal number of electrons and protons
an atom has equal number of electrons and neutrons
an atom has equal number of protons and neutrons
an atom has equal number of electrons, protons and neutrons
उत्तर
An atom has equal number of protons and electrons
An atom always has equal number of protons and electrons in order to maintain electrical neutrality.
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संबंधित प्रश्न
Give the following a suitable word/phrase.
The smallest unit of an element which takes part in a chemical reaction.
Multiple Choice Questions
The outermost shell of an atom is known as
Name three fundamental particles of the atom. Give the symbol with charge, on each particle.
Define the term Atomic number.
What are the two main parts of which an atom is made of?
FILL IN THE BLANK
The γ-rays are............................ radiations, like light.
WRITE SHORT ANSWER
Describe a discharge tube.
ANSWER IN DETAIL
What is the maximum number of electrons that L shell can accommodate ? Give reasons for your answer.
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 __________.
