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The alkali metal. The alkali metal has less protons in the nucleus compared to the halogen in the same period and therefore exerts a relatively smaller attractive force on the outer-most shell electrons, enabling them to stray further away.

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15y ago
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8y ago

You have to ask it in a period. alkaline metals are longer than.

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11y ago

cesium

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Q: What alkali metal has the biggest radius?
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Related questions

What is the biggest element in the alkali family?

The biggest element in the alkali family is cesium. It has the largest atomic radius and is the most reactive alkali metal due to its large size and low ionization energy.


Which alkali earth metal has the smallest atomic radius?

Beryllium has the smallest atomic radius among the alkali earth metals.


What alkali metal has an atomic radius of 238 pm?

The alkali metal with an atomic radius of 238 pm is potassium (K). Its large atomic radius is due to the added electron shells compared to other alkali metals in the same period.


Why does the melting point of an alkali metal decrease as the radius gets bigger?

because Joseph broadly


What is the larger element in the alkali metal family?

Francium has the most larger atomic weight and also the largest atomic radius between the alkali metals.


Is rhodium a alkali metal metal or a transition metal?

it is an alkali metal


Is a metal acid or alkali?

A metal is a base and is an alkali


Is potassium a transition meatal or an alkali metal?

Alkali Metal


What is the alkali metal sodium?

The alkali metal, sodium, is an element.


Is sodium an alkali metal or a transition metal?

alkali you idiots


Is sodium an alkali or a transistion metal?

Sodium is an alkali metal.


Is sodium a alkali metal or a transition?

It is a alkali metal for sure.