write the represtation of a nitrogen atom with mass number 14 and atomic number 7
To represent a nitrogen atom with a mass number of 14 and atomic number 7, we need to understand what these numbers mean.
The atomic number of an element represents the number of protons in the nucleus of an atom. Since the atomic number of nitrogen is 7, this means that a nitrogen atom contains 7 protons.
The mass number, on the other hand, represents the total number of protons and neutrons in the nucleus of an atom. To find the number of neutrons, we can subtract the atomic number from the mass number. In this case, the mass number is 14 and the atomic number is 7, so the number of neutrons can be calculated as:
Number of neutrons = Mass number - Atomic number
= 14 - 7
= 7
So, a nitrogen atom with a mass number of 14 and atomic number 7 would have 7 protons and 7 neutrons.
Now, let's represent this nitrogen atom symbolically. We use the element's symbol, which in the case of nitrogen is "N". The atomic number is written as a subscript on the left side of the element's symbol, and the mass number is written as a superscript on the left side of the element's symbol.
Therefore, the representation of a nitrogen atom with mass number 14 and atomic number 7 is:
^14
N
7