Answer:
option a
Explanation:
The group number of an element is equal to the number of electrons the outermost shell (or highest energy level) contains
Answer: paleotempestology.
The % yield is calculated as follows
% yield = actual yield/ theoretical yield x100
theoretical yield = theoretical moles x molar mass
= 0.700 mole x 101.96 g/mol = 71.372 grams
actual mass = actual moles x molar mass
= 0.329 mol x 101.96 = 33.545 grams
% yield is therefore= 33.545/71.372 x100= 47%
Models are used to study atoms because we can never really see an atom up close, and a model is like a super magnified version of the atom. Plus, its easier to study from them because we can pin point the different characteristics of the atom (Protons, Neutrons, etc.)
Answer:
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