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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
Write the names of `("NH"_4)_2"SO"_4` compounds:
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Give two examples for each of ionic and covalent bond.
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How many electrons would be present in this atom ?
What are the building blocks of matter ?
How is the size of an atom indicated ?
An atom of an element X may be written as `""_9^4"X"`
(a) What does the figure 9 indicate?
(b) What does the figure 4 indicate?
(c) What is the number of protons in atom X?
(d) What is the number of neutrons in atom X?
(e) What is the number of electrons in atom X?
(f) How many electrons are there in the outermost shell of an atom of element X?
(g) Write the symbol of ion formed by an atom of element X.
Which of the following statement is correct about the atom of an element ?
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