Whats the concentration of an aqueous solution with a volume of 0.5 L that contains 200 grams of iron II chloride FeCl2

An atom's configuration based on its number of electrons ends at 3p4. another atom has seven more electrons. starting at 3p, what is the remaining configuration? 3p63d34s2 3p43d54s2 3p64s23d3 3p44s23d

How does a large body of water, such as the ocean, influence climate?

How many neutrons does an element have if its atomic number is 50 and its mass number is 166