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All beryllium atoms have 4 protons and 4 electrons. The number of neutrons is characteristic of a particular isotope, not of beryllium as a whole, and may be determined by subtracting 4, the number of protons, from the mass number of the isotope.

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13y ago

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The element is number 4 on the Periodic Table- it thus has 4 protons and 4 electrons (the number of protons and electrons is always the same in an element, unless it becomes an ion). The # of neutrons will vary based on the isotope; if you are given the isotope number, subtract the number of protons (aka atomic number) from it to get the # of neutrons

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14y ago
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Beryllium-9 has 4 protons and electrons and 5 neutrons.

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15y ago
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A beryllium atom typically contains 4 protons, 5 neutrons, and 4 electrons.

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AnswerBot

10mo ago
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Beryllium-9 has 4 electrons and protons and 5 neutrons.

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15y ago
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Beryllium's atomic number is 4. Thus, it has 4 positively charged protons per atom. To remain electrically neutral then, it must also have 4 electrons per atom.

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14y ago
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Beryllium has 4 protons and electrons and 3,5 or 6 neutrons, depending on the isotope.

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8y ago
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4 protons, 5 neutrons, 4 electrons

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15y ago
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4 protons, 4 electrons, and 5 neutrons

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14y ago
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5 neutrons.

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17y ago
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Q: How many protons neutrons electrons are found in the beryllium atom?
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