Class 10SciencePeriodic Classification of ElementsMix Examples - Periodic Classification of Elements
EasyWrite true or false for the statement: Electronic configuration of hydrogen resembles that of alkaline earth metals.
(FALSE) The statement is False.
Hydrogen has an electronic configuration of $1s^1$,which means it has one valence electron in its outermost shell.
Alkaline earth metals (Group $2$ elements) have a general valence shell electronic configuration of $ns^2$,meaning they have two valence electrons.
Hydrogen's configuration actually resembles that of alkali metals (Group $1$),which have a general valence shell configuration of $ns^1$.
Hydrogen has an electronic configuration of $1s^1$,which means it has one valence electron in its outermost shell.
Alkaline earth metals (Group $2$ elements) have a general valence shell electronic configuration of $ns^2$,meaning they have two valence electrons.
Hydrogen's configuration actually resembles that of alkali metals (Group $1$),which have a general valence shell configuration of $ns^1$.
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Three elements $B$,$Si$ and $Ge$ are
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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 SolutionProperties of the elements are given below. Where would you locate the following elements in the periodic table?
$(a)$ An element which is an inert gas with atomic number $2$.
$(b)$ An element whose thin oxide layer is used to make other elements corrosion resistant by the process of 'anodising'.
$(a)$ An element which is an inert gas with atomic number $2$.
$(b)$ An element whose thin oxide layer is used to make other elements corrosion resistant by the process of 'anodising'.
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