answersLogoWhite

0

As you move down any group on the Periodic Table, atomic radius increases (due to extra energy levels of electrons, which expand the atom's volume.) Electrons that are farther away from the nucleus are easier to remove, due to gradually weaker Coulombic forces moving down the group. So, ionization energy decreases with each increment downward. This explains, for example, why cesium (Cs) is more reactive than sodium (Na).

User Avatar

Wiki User

9y ago

What else can I help you with?

Related Questions

What trend in electronegativity do you see as you go down a group-family on the periodic table?

Electronegativity decrease down in a group.


In ionization energy how does the property varies within a group?

The ionization energy decrease moving down in a group.


Does the first ionization energy increase or decrease when you go down a group?

it increases


Does an element on the periodic table decrease in atomic size when you move across a period from left to right and when you move down a group?

1. In a period is a trend of decrease from left to right but it is not absolute.2. In a group the atomic radius increase moving down.


Does a nonmetallic character increase or decrease down a group?

Down a group, the number of shells increases, also the atomic size. Thus , the metallic character increase does increase as going DOWN a group. It is easy to remove an electron froman atom of bigger size.


What is electron affinity . write down its trend in periods and group?

The electronegativity increase in a period from left to right; in a group decrease by descending.


What must become weaker for the melting point to decrease down the group?

The bonds between the electrons


What is group trend of boiling point in IA group?

The boiling point decrease from lithium to caesium.


What is the group trend in the first ionization energies and why?

1. The ionization energy decrease down in the group.2. The cause is that the distance between the nucleus and the electron shell increase and the needed energy to extract an electron decrease.


Why the solubility of alkaline earth metals decrease down the group?

because down the group the cation becomes gets larger so the hydration energy decreases. so the solubility decreases


What happens to IE when moving down on the periodic table?

The general trend with Ionization energy as you move down a column on the periodic table is that IE decreases. Ionization energy is the amount of energy required to remove an electron from an atom. As you move down a column, the electron moves farther away from the nucleus and the electron shielding effect increases. There is less of a pull keeping the electron in thus making it easier to remove.


Why do alkali's get softer down the group 1?

Alkali metals get softer down Group 1 due to an increase in atomic size and weaker metallic bonding. As you move down the group, the atomic radius increases, leading to a decrease in the strength of metallic bonding and making the metals softer.