A2.98 gram rectangular object has measurements of 21.1 mm, 14.2 mm, and 12.1 mm. what is the object’s density in units of g/ml? use significant figures. do not enter “g/ml” as part of your answer. do not use scientific notation.

density = 0.822  g/mL

Explanation:

We calculate the density knowing the flowing formula:

density = mass / volume

mass = 2.98 grams

volume = 21.1 × 14.2 × 12.1 = 3625 mm³ = 3.625 cm³ = 3.625 mL

density = 2.98 / 3.625 = 0.822  g/mL

a electronegativity decreases beacuse the size of nucleus is bigger.