Group 1 Elements: Alkali Metals

What are the radioactive elements in $\mathrm{s}$ block?

Name two colourless metal ions.

 Write the reaction of potassium with sulphuric acid.

When alkali metals are reacted with an acid, _____ gas and metal salts are formed.

Why alkali metals show an oxidation state of $+1$.

What happens when alkali metals react with compound containing acidic hydrogen?

What happens when alkali metals reacts with acids?

Explain the oxidation states of alkali metals.

The decreased order of the ionic conductance in the alkali metal is:

${\mathrm{Li}}^{+}<{\mathrm{Mg}}^{+}<{\mathrm{K}}^{+}<{\mathrm{Rb}}^{+}<{\mathrm{Cs}}^{+}.$

Which element has the least ionic conductance in the alkali metal?

Describe the ionic conductivity of lithium(alkali metal).

Due to their strong electropositive character, alkali metals have very high tendency to attract or accept electrons.

Alkaline earth metals have very little tendency to gain electrons. Hence, these have very low _____ values

Due to stable configuration of fully filled _____ orbitals, alkaline earth metals have very little tendency to gain electrons.$(\mathrm{s}/\mathrm{p})$

Define electron gain enthalpy, and how does it act in the alkaline earth metals?

Define electron gain enthalpy, and how does it act in the alkali metals?

Alkali metals react directly with hydrogen gas at about 673 K (Li at 1073 K) to form their _____ hydrides.
 

All alkali metals combine with dry hydrogen on heating to form white crystalline ionic hydrides of the general formula MH.

Which of the following elements shows in the decreases of the stability of hydrides.