A) hydrogen can reduce copper oxide but not aluminium oxide explain (b) When water reacts with potassium metal the hydrogen produced ignites explosively on the surface of water
what causes this ignition?
write an equation to show how this ignition occurs

since the atomic number is the number of protons in the nucleus, as we move to the left on the periodic table, the electrostatic pull between the nucleus and the valence electron shell decreases. as we move down a group (vertical column), the valence shell energy level gets further and further from the nucleus.

the maximum mass of nh3 is nh3 in grams