A nucleus of stable phosphorus has $15$ protons and $16$ neutrons. What is its atomic number and mass number ?

Q. A nucleus of stable phosphorus has $15$ protons and $16$ neutrons. The nucleus of radio phosphorus has one neutron more than the stable nucleus. What will be its atomic number and mass number ?

Q. A nucleus of stable phosphorus has 15 protons and 16 neutrons.​
a) What is its atomic number and mass number? ​
b) The nucleus of radio phosphorus has one neutron more than the stable nucleus. What will be its atomic number and mass number? ​
c) What will be the atomic number and mass number of new nucleus formed by the decay of a $\beta$-particle by the radio phosphorus in part (b)?​

Q. A nucleus of stable phosphorus has 15 protons and 16 neutrons. What will be the atomic number and mass number of new nucleus formed by decay of a $\beta$-particle by the phosphorus nucleus?

Q.

An atom of phosphorus has the symbol
$3115P$. Give the number of protons, neutrons and electrons in an atom of phosphorus.

Number of protons __(A)___.
Number of neutrons __(B)___ .
Number of electrons __(C)___ .

Q. An atom of an element contains $13$ electrons. Its nucleus has $14$ neutrons. Find out its atomic number and approximate atomic mass. An isotope has atomic mass $2$ units higher. What will be the number of protons, neutrons and electrons in the isotope?