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प्रश्न
Which of the following statements made by Dalton has not undergone any change?
विकल्प
Atoms cannot be broken.
Atoms combine in small, whole numbers to form compounds.
Elements are made up of atoms.
All atoms of an elements are alike
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उत्तर
All atoms of an elements are alike.
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संबंधित प्रश्न
Tick the most appropriate answer.
Who discovered that radioactive rays are given out by uranium?
- Henri Becquerel
- Marie Curie
- Pierre Curie
- Schmidt
Write the names of the elements present in the:-
Acetic acid
Name the particles which revolve around the nucleus.
Write electronic configuration of oxygen, fluorine, sodium, silicon, argon.
How did Neils Bohr visualise the atom ?
Fill in the blank
An excess of electrons produces a ________ charge.
What is the usual symbol for (a) and electron (b) a proton, and (c) a neutron?
Define the following term:
Atom
Draw the diagrams representing the atomic structures of the following: Neon
Define the following term with an example.
Metalloid
