Write down the characteristics of metal oxides.

What is crystal lattice? Write two characteristics of crystal lattice.

Write three characteristics of physorption.

Write the characteristics of an electromagnetic.

Write any four characteristics of Pteridophytes.

Write the general valence shell electronic cofiguration of the element of first transition series and mention one characteristic of transition metals.

Write the characteristics and functions of steam.

Write down the formulae of magnesium hydroxide.

Write three important characteristics of enzyme catalytic reaction.

Write the characteristic of prograssive wave and stationary wave.

What are metalloids or semi-metals? Write down the name of the metalloids along with their atomic number.