Protons and neutrons make up most of an atom's mass. Electrons have almost no mass.
Volume is 2.3×2.4×20=110.4 cm^3
there is given an object mass, so maybe you need a density too?
density = mass / volume = 17.5/110.4=0.1581 g/cm^3
The physical property that is similar to glass, water, dry ice , plastic wrap and air is ; Color ( colorless substances )
All the listed elements share one physical property which is in their color. glass, water, dry ice, plastic wrap and air are all colorless in nature.
Physical properties of elements/substances are measurable or observable properties of an element that does not affect the chemical composition of the element/substance. physical properties describes the physical appearance of a substance.
Hence we can conclude that the physical property that is similar to glass, water, dry ice, plastic wrap and air is ; Color
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