Physics

Physics, 21.07.2019 16:10, hawleyemily

What value is closest to the mass of the atom

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Chemistry, 30.06.2019 04:30, gaby8282

What is atomic mass a: the mass of the atom based on the mass of an atom of oxygen-16 b: the mass of an atom based on the mass of an atom of carbon-12 c: the average mass of all isotopes d: the mass of the atom based on the mass of an atom of hydrogen-1

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Chemistry, 29.08.2019 16:10, laceytoyne72

2) what is the name of a group of atoms that have the same atomic number but different atomic mass? 3) fluorine’s atomic number is 9 and its atomic mass is 19. how many neutrons does fluorine have? 4). an uncharged atom of boron has an atomic number of 5 and an atomic mass of 11. how many protons does boron have? 5). how can you determine the approximate mass of an atom, in atomic mass units? 6). atoms with the same number of protons but with different electrical charges are 7). in salt, what is the nature of the bond between sodium and chloride? 8). an ionic bond involves 9). the innermost electron shell of an atom can hold up to how many electrons? (the shell closest to the nucleus) 10). what determines the types of chemical reactions or bonds that an atom participates in?

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Physics, 30.08.2019 03:50, ronniethefun

An atomic mass unit is equal to a. one-half the mass of a hydrogen atom. b. one-fourth the mass of a lithium atom. c. one-twelfth the mass of a carbon-12 atom. d. one-fifteenth the mass of a nitrogen-15 atom.

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Chemistry, 12.10.2019 02:30, PotatoBananad

An atomic mass unit is equal to a. one-half the mass of a hydrogen atom. b. one-fourth the mass of a lithium atom. c. one-twelfth the mass of a carbon-12 atom. d. one-fifteenth the mass of a nitrogen-15 atom.

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