Question

Which of the following represents an electropositive element ?
2,8,6
2,8,8
2,8,8,1
2,7

Answer 1

2 , 8 , 8 , 1 is an electro-positive element.

But why?

• Electro-positive elements are those atoms which can lose one or more electrons and form octet configuration in order to become more stable.

• 2,8,8,1 is such an element in which the atom will lose its 1 valence electron and achieve the octet configuration (i.e. 2,8,8) and become extremely stable.

• So, option 3 is correct and actually the element is POTASSIUM

• However, in the other options, the atoms are either already in octet configuration or take up electrons (i.e. electro-negative).

$\star$ Option 3 is correct ✔️

Answer 2

Answer :-

2 , 8 , 8 , 1 is an electro-positive element.

But why?

• Electro-positive elements are those atoms which can lose one or more electrons and form octet configuration in order to become more stable.
• 2,8,8,1 is such an element in which the atom will lose its 1 valence electron and achieve the octet configuration (i.e. 2,8,8) and become extremely stable.
• So, option 3 is correct and actually the element is POTASSIUM
• However, in the other options, the atoms are either already in octet configuration or take up electrons (i.e. electro-negative).

⋆ Option 3 is correct ✔️