1. Compare Most atoms of uranium, which has 92 protons are either uranium-335 or uranium-38. Compare the mass numbers and atomic numbers of these two isotopes of
uranium Recall, atomic number is the number of protons in the nuclei of elements

18

☆ionisation energy increases across a period from na -> ar☆ionisation energy decreases down a group from li -> fr☆ionic radius decreases across a period from na -> cl☆ionic radius increases down a groupfrom f -> ii hope it clarifies your doubts

Idon't hope someone you

The disturbance is only parallel to the motion of the wave.