Question and answer
How do scientists determine the number of neutrons in an isotope of an atom? A. They find the number of protons. B. They divide the atomic mass by two. C. They add the number of
electrons and protons. D. They subtract the atomic number from the atomic mass.
B. atomic number from mass number. Atomic number - mass number gives us the number of neutrons in an atom.
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Original conversation
User: How do scientists determine the number of neutrons in an isotope of an atom? A. They find the number of protons. B. They divide the atomic mass by two. C. They add the number of electrons and protons. D. They subtract the atomic number from the atomic mass.

Weegy: B. atomic number from mass number. Atomic number - mass number gives us the number of neutrons in an atom.
eturker|Points 2667|

User: Which of the following is true statement about isotopes? A. The number of protons always equals the number of neutrons in all isotopes. B. The number of protons never equals the number of neutrons in an isotope. C. Different isotopes for the same element will always have the same numbers of neutrons. D. Different isotopes for the same element always have the same number of protons.

Weegy: The answer is: D. with the same number of protons but different number of neutrons. [smile]
koaley|Points 6227|

User: What determines the chemical properties of an element? A. the number and arrangement of the electrons in an atom B. the number of neutrons and protons in an element C. the arrangement of all the neutrons, protons, and electrons D. the atomic mass of an atom

User: What determines the chemical properties of an element? A. the number and arrangement of the electrons in an atom B. the number of neutrons and protons in an element C. the arrangement of all the neutrons, protons, and electrons D. the atomic mass of an atom







Weegy: D. the atomic mass of an atom
Expert answered|Booknerd_lizzy|Points 300|

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Asked 10/22/2012 4:12:05 PM
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Find the difference. 8 – 12 A. –20 B. –4 C. 4 D. 20
Weegy: 8 – 12 = -4 User: Find the difference. 12 – (–17) A. –29 B. –5 C. 5 D. 29 (More)
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Expert Answered
Updated 54 days ago|8/6/2014 6:31:03 PM
1 Answer/Comment
The difference for 12 – (–17) is 29.
12-(-17)
=12+17
=29.
Added 54 days ago|8/6/2014 6:27:31 PM
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