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Compare and contrast the reactivity and number of valence electrons of Sodium, Potassium and Francium referencing periods and groups. Compare and contrast the reactivity and number of valence electrons of Sodium Potassium, and Francium referencing periods and groups?​

Sagot :

the first thing i can compare of sodium potassium and francium is that they all have one valence electron putting them all in group 1a therefore the reactivity decreases down the periodic tables periods so this would make the reactivity different which makes the order from least to greatest in reactivity is sodium, potassium and lastly francium.

Valence means space that can be filled. With the help of valence electrons, reactivity order, presence of elements in the group these all elements can be distinguished and compared.

What are valence electrons?

A valence electron is an electron in the outermost shell associated with an atom that can experience the innovation of a chemical bond if the outer shell is not closed. Both atoms contribute one valence electron to create a shared pair.

Following are the ways by which the given element can be compared.

1. They have one valence electron in their outer shell.

2. They all are present in group 1 A.

3. The order from least to highest in reactivity is sodium, potassium, and finally francium.

Hence with the help of valence electrons, reactivity order, presence of elements in the group these all elements can be distinguished and compared.

To learn more about the valence electrons refer to the link;

https://brainly.com/question/21514683