I believe you are referring to carbon. The process by which this is done is called Carbon Dating.
a trend or element of nature
No that is not true. The number of PROTONS determines what the element is.
No. The element's atomic number determines how it forms compounds.
The number of protons.
protons
The number of protons determines the element's atomic number. When combined with the number of neutrons, it determines the element's atomic mass.
Carbon. The process in which this is done is called Carbon Dating.
protons
overall charge
69
Honda decides
the mass of protons + the mass of neutrons = mass of the element