Find the number of Protons and Neutrons in the nucleus of an atom of an element x which is represented - Science - Atoms and Molecules

Question

Find the number of Protons and Neutrons in the nucleus of an
atom of an element x which is represented as 207 X 82

Kirti Gogia · Accepted Answer

The atomic number of an element is equal to the number of
protons in an atom This is equal to the number of electrons in a
neutral atom Also, mass number is the total number of protons and
neutrons that are present in an atom Whenever we represent an atom,
the atomic number is represented as the subscript and the mass
number is represented as the superscript For the given atom,
207
X 82
82 is written as the subscript and 207 is written as the
superscript So the number of protons are 82 The total number of
protons and neutrons (mass number) are 207, so the number of
neutrons will be
= mass number - atomic number
= (207 - 82) = 125
So the number of protons are 82 and number of neutrons are
125

Find the number of Protons and Neutrons in the nucleus of an atom of an element x which is represented as 207 X 82

Find the number of Protons and Neutrons in the nucleus of an atom of an element x which is represented as²⁰⁷ X ₈₂