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Grade 109 grade science

1 a.m.u is defined as the 1/12th mass of a atom of carbon-12 .Is the carbon-12 and the carbon (in the periodic table) the same.

Profile image of Rahul Jiji George
11 Years agoGrade 10
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2 Answers

Profile image of Shrish Khanna
11 Years ago
yes 
 
only they choose carbon although oxygen, nitrogen , are there??
 
because carbon is the one which gives same repeat repeat values 
 
 
 
 
 
Profile image of Raheema Javed
11 Years ago
Yes Carbon12 is the same carbon as in the periodic table.
Carbon-12 is the more abundant of the two stable isotopes of the element carbon, accounting for 98.89% of carbon; it contains six protons, six neutrons and six electrons.Carbon-12 is of particular importance as it is used as the standard from which atomic masses of all nuclides are measured: its mass number is 12 by definition.

Carbon-12

General
Name symbol -Carbon,12C
Neutrons- 6
Protons -6
Nuclide data
Natural abundance- 98.89%
Parent isotopes -12N,12B
Isotope mass -12 u