The electron configuration of an element is 1s^2 2s^2 2p^6. Describe what most likely happens when an atom of this element comes near an atom having seven valence electrons

Answer & Explanation:

Using the numbers in the configuration 1s² 2s² 2p^6 3s^1, we can find out it has 11 electrons (by adding 2,2,6,1), meaning the element is sodium (Na). Sodium is in the outermost column of the periodic table, meaning it has one valence electron, making it highly reactive because it can very easily give one electron in a reaction. Atoms will prefer to have a full eight valence electrons, meaning an atom with seven valence electrons is also incredibly reactive since it only needs to gain one more in a reaction to gain eight. If sodium, an element with one valence electron, reacts with an element with seven (i.e chlorine), they both will be very quick to chemically bond to form a full valence shell. 

answer

fusion: the energy source of stars. the energy released from the collapse of the gas into a protostar causes the center of the protostar to become extremely hot. when the core is hot enough, nuclear fusion commences. fusion is the process where two hydrogen atoms combine to form a helium atom, releasing energy.

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