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They may have slightly varying physical properties because they have different masses.
It depends on the number of molecules in the matter and their masses and does not depend on gravity.
• Atomic mass (A) is the sum of the masses of protons and neutrons in the nucleus.
Observations that include studies of binary pulsars, thermal emission from isolated neutron stars, glitches from pulsars and quasi-periodic oscillations from accreting neutron stars provide information about neutron star masses, radii, temperatures, ages and internal compositions.
As we ob- serve, the gravitational potential of aether decrease in vicinity of masses and this in turn modify its electromagnetic properties.
Chapter 4 – Answer Key, Introduction to Chemical Engineering: