Question
10. & multicolumn(2)(|c)( In the following diagram, what ) & mathrm(C) & on & Carbon & Nitr 8 & 12.0 & 14 & ( )^14 & a. An atomic number b. A number of electrons c. An atomic mass d. A chemical symbol
Answer
4.7
(201 Votes)
Clive
Elite · Tutor for 8 years
Answer
C
Explanation
The diagram provided is a representation of a periodic table entry for an element, with certain parts missing. The number 12 is located in the center of the table entry, which typically corresponds to the atomic mass of the element. The atomic mass is the average mass of atoms of an element, measured in atomic mass units (u), and it takes into account the relative abundances of different isotopes of the element. It is not the atomic number, which is the number of protons in the nucleus of an atom and is usually located at the top of the table entry. It is also not the number of electrons, which in a neutral atom is equal to the atomic number. Lastly, it is not a chemical symbol, which is a one- or two-letter abbreviation of the element's name.Given the context and typical layout of a periodic table:a. An atomic number is usually at the top of the element's cell, not in the center.b. A number of electrons would be equal to the atomic number in a neutral atom, not typically listed in the center.c. An atomic mass is generally found in the center of the element's cell in the periodic table.d. A chemical symbol is the one- or two-letter abbreviation of the element's name, not a number.