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How do elements change as you move down a column in a periodic table? a.the atomic radius decreases b.the number of protons decreases c.the atomic mass decreases d.the electronegativity decreases

Sagot :

Hippalectryon
As you move down a column :
* the atomic number increases
* the number of protims increases
* the atomic mass increases
* the electronegativity decreases

Answer: Option (d) is the correct answer.

Explanation:

Electronegativity is defined as the ability of an atom to gain electrons in order to become stable.

When we move downwards in a group then there will be increase in size of atom. As a result, atomic radius will also increase.

Also, due to increase in size number of electrons will increase and hence, number of protons will also increase. Therefore, atomic mass will also increase.

Thus, we can conclude that elements change as you move down a column in a periodic table as the electronegativity decreases.

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