Chemistry

Chemistry, 25.10.2019 13:43, aliciaa101

All atoms of the same element have the same
a. # of neutronsb. # of protonsc. mass #s
d. mass

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Chemistry, 05.07.2019 02:30, deborah0

2suppose that a new element (e) were discovered that existed as three natural isotopes: 25% of atoms had a mass of 278, 38% had a mass of 281, and the remained had a mass of 285. what would be listed as the atomic mass of this element? explain your logic and show all steps.

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Physics, 08.07.2019 14:50, cggvbfbvrcf

The atomic mass of an element is a.the average mass of all the isotopes of the element b. a measure of the density of that element c.the mass of the most common isotope of that element d.the number of protons and electrons in the atoms of the element

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Chemistry, 18.07.2019 12:00, WinterStrikesBack

The relative atomic mass of an element is: a. the mass of only the neutrons in the atom's nucleus. b. the mass of its atoms compared to the mass of a carbon-12 atom. c. the mass of its isotopes compared to the mass of a normal atom. d. the mass of its atoms averaged over time.

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Chemistry, 22.09.2019 00:10, googoomylizard

4. ninety-two percent of the atoms of an element have a mass of 28 u, 5% have a mass of 29 u, and the remaining atoms have a mass of 30 u. calculate the average atomic mass and identifythe element.

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All atoms of the same element have the same
a. # of neutronsb. # of protonsc. mass #s
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