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प्रश्न
Define the term Valence shell.
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उत्तर
The outermost shell of an atom is known as its valence shell.
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संबंधित प्रश्न
Multiple Choice Questions
number of valence electrons present in magnesium is
Name three fundamental particles of the atom. Give the symbol with charge, on each particle.
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In an atom, the last shell containing electrons is called its..................shell.
Tick the most appropriate answer.
Which of the following scientists observed that cathode rays consists of negatively charged particles?
- John Dalton
- J J Thomson
- James Chadwick
- Democritus
Name the negatively charged particle present in the atoms of all the elements.
Which of the following statement is always correct?
Name the three fundamental particles of an atom.
Define the term Mass number.
Explain how the modern atomic theory contradicted Dalton’s atomic theory.
What is meant by the term subatomic particles?
