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प्रश्न
Multiple Choice Questions
number of valence electrons present in magnesium is
पर्याय
two
three
four
five
MCQ
उत्तर
two
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Discovery of Charged Particles in Matter
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संबंधित प्रश्न
Give the following a suitable word/phrase
The sub-atomic particle with negative charge and negligible mass.
Name three fundamental particles of the atom. Give the symbol with charge, on each particle.
Define the term Atomic number.
Explain the rule with example according to which electrons are filled in various energy levels
Tick the most appropriate answer
β-particles are actually a stream of
- protons
- electrons
- neutrons
- none of these
WRITE SHORT ANSWER
What is an atom?
WRITE SHORT ANSWER
Name the isotopes of hydrogen.
Why is an atom neutral inspite of the presence of charged particles in it?
The particle not present in an ordinary hydrogen atom is :
Name the sub-atomic particle whose charge is 0.
