The Ruthenium Ru is a chemical element belonging to the Platinum group. If you look on the periodic table, his atomic number is Z=44. Atomic number represents too the number of Protons, and since an atom is electrically neutral, the number of protons is equal to the number of electrons. So Ruthenium got 44 electrons. The mass number of the ruthenium based on the periodic table is A=101. A = Z+N with N the number of neutrons. So N = A-Z = 101 - 44 = 57. So the Ruthenium contains 57 neutrons.
Just for more information, the Ruthenium is commonly used in Jewelry and in electricity in case of severe wear resistance.
For real gas the volume of a given mass of gas will increase with increase in temperature.
Explanation:
With the piston head locked in place and place above the fire,the volume of the gas will increase,because the volume of a given mass of gas increases with increase temperature.