jacobe0008 jacobe0008

20-03-2017
Physics

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Which two elements will be the most alike and why?
a. Helium (He) and Hydrogen (H)
b. Oxygen (O) and Neon (Ne)
c. Lithium (Li) and Sodium (Na)

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anclarin anclarin

20-03-2017

C.) Lithium (Li) and Sodium (Na)

Because they are in the same group (vertical rows) which means they have the same number of valence electrons and will react similarly.

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