1.The trend in successive ionization energies as electrons are removed one at a time from an aluminum atom. Why is there a big jump between IE3 and IE4 ?

2. Why does sulphur have a lower first ionization energy than phosphorus?

3.The second ionization energy of lithium is much greater than that of beryllium. Explain.

4.For strontium, which quantity will be greater, the difference between IE1 and IE2 or
the difference between IE2 and IE1?
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Subduction zones occur on earth where dense oceanic crust dives under more buoyant continental crust. these boundaries are characterized by a deep ocean trench next to a high continental mountain range, large numbers of earthquakes and volcanoes. all of this is further evidence for the a) big bang theory b) origin of the species eliminate c theory of plate tectonics d theory of natural selection 4 sedimentary rocks found high in the himalayen mountain

Asample of radium-226 will decay 1/4 of its original amount after 3200years. what is the half-life of radium-226?

Reaction rate depends on how many molecules are coming into contact with each other with enough energy to react. increasing the temperature of the reactants will increase -