315897
Which physical property in the alkali metal group increases with atomic number?
1 Melting point
2 Electronegativity
3 Hydration enthalpy
4 Density
Explanation:
Density of the alkali metals almost increases on moving down the group. However, a small decrease in density is observed from \(\mathrm{Na}\) to \(\mathrm{K}\), due to abnormal increase in atomic size from \(\mathrm{Na}\) to \(\mathrm{K}\).
CHXI10:THE S-BLOCK ELEMENTS
315898
Among the following properties the one that is not true for an alkali metal is
1 low atomic volume
2 low ionization enthalpy
3 low density
4 low electronegativity.
Explanation:
In any period, alkali metal (except noble gas) has the lowest density. Therefore, alkali metals have large atomic volumes.
CHXI10:THE S-BLOCK ELEMENTS
315899
The increasing order of atomic radius for the elements \(\mathrm{Na}, \mathrm{Rb}, \mathrm{K}\) and \(\mathrm{Mg}\) is
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CHXI10:THE S-BLOCK ELEMENTS
315897
Which physical property in the alkali metal group increases with atomic number?
1 Melting point
2 Electronegativity
3 Hydration enthalpy
4 Density
Explanation:
Density of the alkali metals almost increases on moving down the group. However, a small decrease in density is observed from \(\mathrm{Na}\) to \(\mathrm{K}\), due to abnormal increase in atomic size from \(\mathrm{Na}\) to \(\mathrm{K}\).
CHXI10:THE S-BLOCK ELEMENTS
315898
Among the following properties the one that is not true for an alkali metal is
1 low atomic volume
2 low ionization enthalpy
3 low density
4 low electronegativity.
Explanation:
In any period, alkali metal (except noble gas) has the lowest density. Therefore, alkali metals have large atomic volumes.
CHXI10:THE S-BLOCK ELEMENTS
315899
The increasing order of atomic radius for the elements \(\mathrm{Na}, \mathrm{Rb}, \mathrm{K}\) and \(\mathrm{Mg}\) is
315897
Which physical property in the alkali metal group increases with atomic number?
1 Melting point
2 Electronegativity
3 Hydration enthalpy
4 Density
Explanation:
Density of the alkali metals almost increases on moving down the group. However, a small decrease in density is observed from \(\mathrm{Na}\) to \(\mathrm{K}\), due to abnormal increase in atomic size from \(\mathrm{Na}\) to \(\mathrm{K}\).
CHXI10:THE S-BLOCK ELEMENTS
315898
Among the following properties the one that is not true for an alkali metal is
1 low atomic volume
2 low ionization enthalpy
3 low density
4 low electronegativity.
Explanation:
In any period, alkali metal (except noble gas) has the lowest density. Therefore, alkali metals have large atomic volumes.
CHXI10:THE S-BLOCK ELEMENTS
315899
The increasing order of atomic radius for the elements \(\mathrm{Na}, \mathrm{Rb}, \mathrm{K}\) and \(\mathrm{Mg}\) is