why do atomic radii of atoms of the elements from the top to the bottom of a group on the periodic table increase?

50 pts plz what is the physical state of matter of baking soda.

An alkaline battery produces electrical energy according to the following equation. zn(s) + 2 mno2(s) + h2o(l) zn(oh)2(s) + mn2o3(s) (a) determine the limiting reactant if 17.5 g zn and 31.0 g mno2 are used. (type your answer using the format ch4 for ch4.) (b) determine the mass of zn(oh)2 produced. _ g

How have the greenhouse gasses increased from the year 2000 to 2018