Biology

Biology, 02.08.2019 16:30, sammamamam1090

What makes up the atomic weight of an atom?

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Chemistry, 10.09.2019 19:30, dantedelafuente

Hafnium has six naturally occurring isotopes: 0.16% of 174hf, with an atomic weight of 173.940 amu; 5.26% of 176hf, with an atomic weight of 175.941 amu; 18.60% of 177hf, with an atomic weight of 176.943 amu; 27.28% of 178hf, with an atomic weight of 177.944 amu; 13.62% of 179hf, with an atomic weight of 178.946 amu; . and 35.08% of 180hf, with an atomic weight of 179.947 amu. calculate the average atomic weight of hf. give your answer to three decimal places.

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Chemistry, 17.09.2019 18:10, ghernadez

2.3 zinc has five naturally occurring isotopes: 48.63% of 64 zn with an atomic weight of 63.929 amu; 27.90% of 66zn with an atomic weight of 65.926 amu; 4.10% of 67zn with an atomic weight of 66.927 amu; 18.75% of 68zn with an atomic weight of 67.925 amu; and 0.62% of 70zn with an atomic weight of 69.925 amu. calculate the average atomic weight of zn.

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Geography, 27.09.2019 16:30, donaldplawlerp5cctt

Question 9 which statement is true: the atomic mass of an atom is equal to the number of neutrons in the nucleus the atomic number of an atom is equal to the number of neutrons in its nucleus the atomic weight of an atom is the sum of neutrons plus electrons the atomic weight of an atom is the sum of its protons and neutrons

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Chemistry, 16.10.2019 21:00, 10027945

What is the difference between atomic mass and atomic weight? atomic mass is characterized by the number of neutrons in the nucleus, whereas atomic weight is the weight of an individual atom. atomic mass is the average of the atomic masses of an atom's naturally occurring isotopes, whereas atomic weight is the weight of an individual atom. atomic mass is the mass of an individual atom, whereas atomic weight is the average (weighted) of the atomic masses of an atom's naturally occurring isotopes. atomic weight = atomic mass × g. atomic mass is characterized by the number of protons in the nucleus, whereas atomic weight is the average (weighted) of the atomic masses of an atom's naturally occurring isotopes.

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