Lithium (atomic number - 3), Sodium (atomic number - 11) and Potassium (atomic number - 19) are in the same group in the periodic table with valence electron 1, but potassium seems to be more reactive than sodium and lithium. Why?

Question

Frida

Chemistry

4 April, 00:36

Lithium (atomic number - 3), Sodium (atomic number - 11) and Potassium (atomic number - 19) are in the same group in the periodic table with valence electron 1, but potassium seems to be more reactive than sodium and lithium. Why?

+3

Answers (1)

Know the Answer?

Jensen Sparks · Answer 1

Potassium has an atomic radii that is greater than that of lithium that is why potassium is more reactive than lithium

Explanation:

This is because in lithium the valence electrons are closer to the nucleus therefore the attractive forces between nucleus and valence electrons are very strong.