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Tcecarenko
4 days ago
8

Joan and Mike's teacher show them a picture of an atom and ask them to identify it using the periodic table. Joan says the atom

is Carbon, but Mike says it is Lithium. Who is right and why?
Mike is correct because the atomic number shows the number of protons in all atoms. There are 3 protons and the atomic number of lithium is 3.


Mike is right because the atomic mass of lithium is 6. There are 3 protons and 3 electrons in the atom. 3+3=6


Joan is right because the atomic number of carbon is 6. There are 3 protons and 3 electrons in the atom. The atomic number shows the number of protons plus the number of electrons. 3+3=6


Joan is correct because carbon is a neutral atom. There are the same number of protons and electrons in the atom pictured.
Physics
1 answer:
ValentinkaMS [3.3K]4 days ago
3 0
Since we can't see the image the teacher has provided, we must deduce its content based on clues from the answer choices. The image likely illustrates an atom containing 3 protons and 3 neutrons in the nucleus, along with 3 electrons orbiting it. If that is the case, Mike is correct (first choice) because the atomic number indicates the number of protons present in an atom. Since there are 3 protons, it corresponds to lithium, which has an atomic number of 3. The second choice is false, as electrons do not factor into atomic mass. The third and fourth options are also incorrect; regrettably, Joan does not grasp the concepts accurately.
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