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Excepting francium (extremely rare) caesium has the lowest electronegativity.

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Why is Cs more electropositive than Rb?

Cs is more electropositive than Rb because Cs has a larger atomic size and a single electron in the outermost shell, which makes it easier for Cs to lose an electron and form a cation. As we move down the group in the periodic table, atomic size increases, shielding effect increases, and atomic number increases, all of which contribute to the increase in electropositive character.


The element Cs Ba and Lu appear from left to right in. Six of the periodic table elements which is most reactive?

Cs (Caesium) is the most reactive!!!!


What is the chemical symbol for Cesium?

The chemical symbol for Cesium is Cs.


What element is the least electronegative on the periodic table?

Cesium, Cs


What is the name for the 55 element on the periodick table?

The element with atomic number 55 on the periodic table is cesium.


How many electron must be gain or lost of Cs?

Cs (cesium) is in group I of the periodic table, and has 1 valence electron. This is very easy to lose, and so Cs loses this one electron to become the cesium cation, Cs^1+


What element is most active as you go down the peiodic table Cs or K?

As you go down the periodic table, elements become less reactive. Therefore, potassium (K) is more reactive than cesium (Cs) because cesium is located further down the group compared to potassium.


What element is large on the periodic table?

Cesium is largest element on the periodic table.The atomic radius of Cs is around 273pm. It is present at the lower left corner of the table.


Is CS an alkali metal?

No, CS is not an alkali metal. It is a chemical element known as cesium, which belongs to the alkali metal group on the periodic table.


Where is electronegativity lowest on the periodic table?

Electro negativity is lowest in the bottom of the first group. Cs and Fr have least electro negativity.


The elements cesium Cs Barium Ba and lutetium Lu appear from left to right in Period 6 of the periodic table Among these elements the most reactive is?

The most reactive element among cesium (Cs), barium (Ba), and lutetium (Lu) is cesium (Cs). Cesium is located at the far left of Period 6 in the periodic table and has a single valence electron, which makes it highly reactive.


Where is cesium on the periodic table?

Cesium is in period 6, group 1. Its atomic number is 55. Its symbol is Cs.