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How many neutrons are present in an atom of Argon-38? A. 18 B. 19 C. 20 D. 21
C. 20 neutrons are present in an atom of Argon-38.
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User: How many neutrons are present in an atom of Argon-38? A. 18 B. 19 C. 20 D. 21

Weegy: C. 20 neutrons are present in an atom of Argon-38.
debnjerry|Points 44031|

User: How many neutrons are present in an atom of Iron-54? A. 25 B. 26 C. 27 D. 28

Weegy: D. 28 neutrons are present in an atom of Iron-54
yeswey|Points 2298|

User: Which element above has 6 protons in its nucleus? A. oxygen B. carbon C. phosphorus D. sulfur

Weegy: Phosphorus is the element that has 15 protons in its nucleus.



User: How many neutrons are in an atom of phosphorus with a mass number of 31? A. 31 B. 15 C. 16 D. 30

User: Which isotope has 8 neutrons and can be used for metabolic studies and to date archeological artifacts? A. oxygen-16 B. oxygen-18 C. carbon-13 D. carbon-14

Weegy: It has 6 protons and 6 neutrons. Carbon-14 is very rare. It has the same 6 protons, but 8 neutrons. [ While both are carbon elements, they are different isotopes of carbon. ]
jessMhak|Points 30|

User: What would be the correct isotope notation for an isotope of aluminum with 14 neutrons? A. B. C. D.

Weegy: What are the choices?
chinggay_0118|Points 831|

User: Which element has an atomic mass of 16.00? A. sulfur B. erbium C. oxygen D. magnesium

Weegy: The element that has an atomic mass of 16.00 is: A. sulfur.
Expert answered|sharpies|Points 8787|

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