| 2023-07-15 | \( \mathrm{Cl}, \mathrm{Br} \), \( \mathrm{I} \), if this is Dobereiners triad and the atomic ma... |
| 2023-07-15 | Select the incorrect statement for atomic size.
a. Atomic size of \( \mathrm{B}\mathrm{Be} \)
b.... |
| 2023-07-15 | The position of the three elements \( X, Y \) and \( \mathrm{Z} \) in the periodic table are sho... |
| 2023-07-15 | The correct increasing order of acidic nature of \( \mathrm{SO}_{2} \), \( \mathrm{SiO}_{2}, \ma... |
| 2023-07-15 | The number of electrons in the penultimate d-subshell of element Cobalt is |
| 2023-07-15 | The period number for element Gallium is |
| 2023-07-15 | Identify the group number of electrons in the periodic table whose atomic number is 20 . |
| 2023-07-15 | Does electronic configurations of atoms change in a period with increase in atomic number? |
| 2023-07-15 | Find the valency of an element \( X \) which belongs to group 13. |
| 2023-07-15 | Name the element which has Only one shell which is completely filled with electrons. |
| 2023-07-15 | Name the element which has a total of three shells, containing 3 electrons in the valence shell. |
| 2023-07-15 | Write any three limitations of Mendeleevs classification. |
| 2023-07-15 | Why did Mendeleev leave some gaps in his Periodic Table? |
| 2023-07-15 | Atoms of eight elements A, B, C, D, E, F, G and \( \mathrm{H} \) have the same number of electro... |
| 2023-07-15 | Name the element which has Twice as many electrons in the second shell as in the first shell. |
| 2023-07-15 | Name the element which has (i) the electronic configuration 2, 8, 1 . |
| 2023-07-15 | Name the element which has a total of two shells, containing 4 electrons in the valence shell. |
| 2023-07-15 | Atoms of eight elements A, B, C, D, E, F, G and \( \mathrm{H} \) have the same number of electro... |
| 2023-07-15 | Atoms of eight elements A, B, C, D, E, F, G and \( \mathrm{H} \) have the same number of electro... |
| 2023-07-15 | The modern periodic table has been developed through the early attempts of Dobereiner, Newlands ... |
| 2023-07-15 | Atoms of eight elements A, B, C, D, E, F, G and \( \mathrm{H} \) have the same number of electro... |
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