Questions

The International Year of the Periodic Table of Chemical Elements was launched by UNESCO at its Headquarters in Paris on  29th Jan 2019.

Ionisation energy is the energy required to remove one mole of electrons from one mole of gaseous atoms. Atoms are more stable when they have full valence shells.

The ionization energy decreases from top to bottom in groups, and increases from left to right across a period.

HGence, in this trend Francium (Fr) has the lowest ionization energy.

Humans cannot digest cellulose because they are lacking with the enzymes responsible to breakdown the beta acetal linkages.

We require vitamins B & C for hair growth. But Vitamin B such as Vitamin B7 or Biotin is required for the growth of hair.