Which should be larger, the potassium atom, K, or the potassium ion, K??
A) The potassium ion, K?, is larger since charging an atom always makes it larger.
B) The potassium atom, K, with an additional shell of electrons is larger.
C) The potassium ion, K?, is larger since it has an extra electron which increases its size.
D) The potassium atom and the potassium ion are exactly the same size and only differ in charge.
B
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With a few small exceptions, the countries of the European Union share all of the following except
A) a European Union Constitution. B) a common currency. C) an EU parliament. D) an EU court system. E) free movement of goods, services and people across their boundaries.
The very common mineral shown in this photograph is commonly a pink- to cream-colored mineral with wavy, light-colored lines. What mineral is it?
A) Garnet
B) Quartz
C) Biotite
D) Muscovite
E) Feldspar
The nuclei of continental masses were formed by
a. accretion. d. deposition of limestone reefs. b. meteorite bombardment. e. none of the above c. subduction.
Explain why salinity varies amongst the ocean regions of Earth
What will be an ideal response?