Class 10SciencePeriodic Classification of ElementsMix Examples - Periodic Classification of Elements
EasyWhy does atomic size decrease as we move from left to right along a period in the periodic table?
- ADue to an increase in the number of shells.
- BDue to an increase in effective nuclear charge.
- CDue to a decrease in the number of protons.
- DDue to the addition of electrons in the same shell.
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View SolutionOn moving from left to right in a period in the periodic table,the size of the atom.
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View SolutionWhat is the position of metalloids in the periodic table?
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View SolutionStudy the variation in the atomic radii of Group $I$ elements given below and arrange them in an increasing order.
$(i)$ Name the elements which have the smallest and the largest atoms.
Group $I$ elements $Li: 52\, pm, Na: 61\, pm, K: 231\, pm, Rb: 244\, pm, Cs: 262\, pm$
$(ii)$ How does the atomic size vary as you go down a group?
$(i)$ Name the elements which have the smallest and the largest atoms.
| Group $I$ elements | $Li: 52\, pm, Na: 61\, pm, K: 231\, pm, Rb: 244\, pm, Cs: 262\, pm$ |
$(ii)$ How does the atomic size vary as you go down a group?
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View SolutionWrite the atomic numbers of two elements $X$ and $Y$ having electronic configurations $2, 8, 2$ and $2, 8, 6$ respectively.
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