If an element 'X' has mass number 11and its has 6 neutrons, then write its representation

If an element 'X' has mass number 11 and it has 6 neurons, then write its representation.

An element with mass number 81 contains 31.7% more neutrons as compared to protons. Assign the atomic symbol.

An atom of an element contains 29 electrons and 35 neutrons . Deduce - the number of protons

An element has electronic configuration 2, 8, 18, 1. If its mass number is 63, then how many neutrons will be present in the nucleus of the atom?

The mass number and atomic number of an element are A and Z respectively. The number of neutrons in the atom of that element is calculated as___.

Right or wrong . If wrong , write the correct sentence : A star ends its life as a neutron star when the pressure of its electrons balances its gravity .

An atom of an element contains 29 electron and 35 neutrons. Deduce a. the number of protons b. the electronic configuration of that element

If a polygon has 44 diagonals, then the number of its sides are

Answer the following questions in one sentence each : The atomic mass number of an element is 18, and the element contains 8 electrons. What is the number of protons and neutrons in it ?