State whether the following statement is true or false:
The relative number and kinds of atoms are varying in a given compound.
The relative number and kinds of atoms are varying in a given compound.
(FALSE) False.
According to the Law of Constant Proportions,a chemical compound always consists of the same elements combined together in the same fixed proportion by mass. Therefore,the relative number and kinds of atoms in a given compound are constant,not varying.
According to the Law of Constant Proportions,a chemical compound always consists of the same elements combined together in the same fixed proportion by mass. Therefore,the relative number and kinds of atoms in a given compound are constant,not varying.
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The presence of electrons outside the nucleus and the nucleus at the centre of the atom was suggested by:
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View SolutionMatch the names of the scientists given in column $A$ with their contributions towards the understanding of the atomic structure as given in column $B$.
Column $A$ Column $B$ $(a)$ Ernest Rutherford $(i)$ Indivisibility of atoms $(b)$ $J$.$J$. Thomson $(ii)$ Stationary orbits $(c)$ Dalton $(iii)$ Concept of nucleus $(d)$ Neils Bohr $(iv)$ Discovery of electrons $(e)$ James Chadwick $(v)$ Atomic number $(f)$ $E$. Goldstein $(vi)$ Neutron $(g)$ Mosley $(vii)$ Canal rays
| Column $A$ | Column $B$ |
| $(a)$ Ernest Rutherford | $(i)$ Indivisibility of atoms |
| $(b)$ $J$.$J$. Thomson | $(ii)$ Stationary orbits |
| $(c)$ Dalton | $(iii)$ Concept of nucleus |
| $(d)$ Neils Bohr | $(iv)$ Discovery of electrons |
| $(e)$ James Chadwick | $(v)$ Atomic number |
| $(f)$ $E$. Goldstein | $(vi)$ Neutron |
| $(g)$ Mosley | $(vii)$ Canal rays |
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