6. Europium (Eu) has two stable isotopes, 151 Eu and 153 Eu, the masses of which are 150.920 u and 152.921 u, respectively. What is the percent natural abundance for the heavier isotope? Hint: The natural abundances for both isotopes must add to 100%; X + Y = 100%

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Q: 6. Write the systematic (IUPAC) name for each of the following molecules. d me met Methyl

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Q: Predict the major product(s) for the following reaction. Excess HBr Heat ?

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Q: If the rate of the 2H is 0.870 M/s ove time? O 10.66 M 21.32 M 5.33 M 31.98 M 3.55 M

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Q: Predict the major products of this organic reaction.

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Q: Is your hydrated metal salt unknown efflorescent? Explain.

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Atomic Structure

The basic structure of an atom is defined as the component-level of atomic structure of an atom. Precisely speaking an atom consists of three major subatomic particles which are protons, neutrons, and electrons. Many theories have been stated for explaining the structure of an atom.

Shape of the D Orbital

Shapes of orbitals are an approximate representation of boundaries in space for finding electrons occupied in that respective orbital. D orbitals are known to have a clover leaf shape or dumbbell inside where electrons can be found.