Consider the positions of carbon, nitrogen, potassium, and calcium on the periodic table. the atoms of which element attract electrons most strongly in chemical bonds?

Observe the periodic table and find these four elements. The strongest one will be furthest to the right, and the highest up. Note that if we have elements a and b, and a is further to the right than b but not as high up as b, a is still stronger because it comes down to who is furthest to the right AND THEN who is further upward if two options are on the same column. With that being said, Nitrogen is the answer.

the law of conservation of mass states that in a chemical reaction, the total mass of reactants is equal to the total mass of products. because atoms are only rearranged in a chemical reaction, there must be the same number of sodium atoms and chlorine atoms in both the reactants and products

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