What is the particular significance of valence electrons?
a. Unlike electrons in other shells, valence electrons have no charge.
b. Valence electrons always balance the charge produced within the nucleus.
c. The number of valence electrons is the atomic number for that element.
d. Valence electrons form chemical bonds between atoms by being transferred or shared.
e. The number of valence electrons defines the type of element.
d. Valence electrons form chemical bonds between atoms by being transferred or shared.
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Immigrants to which American colonies had the most diverse backgrounds?
A) Middle Atlantic B) New England C) Northern D) Southeast E) French Canadian
Human blood contains which of the following buffers?
A) H2CO2/HCO3- B) HC2H3O2/C2H3O2- C) both a and b D) neither a nor b
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a. compressional b. lateral shearing c. tensional d. thrusting e. normal
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A) Anchovy B) Humans C) Mako shark D) Tuna E) Zooplankton