What is the significance of the number of protons found in the atoms of different elements ?

The number of protons and neutrons for most stable elements is

In a chloroplast the highest number of protons are found in

In chloroplast, the highest number of protons are found in

In chloroplast, the highest number of protons are found in

Number of protons in the nucleus of carbon atom is

What is the significance of reciprocal of "gold number"?

Atomic number is the sum of number of protons and neutrons.

What is the significance of the word average in the definition of atomic mass ?

An atom of an element is represented as ""_12^24A . Write the number of protons present in one atom of the element.

If the atomic number (Z) and mass number (A) of an element X are related by the equation A+Z= 46 and the total number of neutrons in one atom of X is 16, then the total number of protons and electrons in one atom of element X='a'. Find value of 'a'