Which of the following statements is true? a) the iron atom is best considered to be a solid. b) the mercury atom is best considered to be a liquid. c) the helium atom is best considered to be a gas. d) at least two of the above statements are correct. e) none of the above statements are correct.

Nickel crystallizes in the face-centered cubic (fcc) lattice. the density of the metal is 8902 kg/m3. calculate the radius of a nickel atom.

What shape would a molecule with two bound groups and two lone pairs have?

Calculate the estimated density of each ball. use the formula d = m/v where d is the density, m is the mass, and v is the volume. record your calculations in table a of your student guide. given that the density of water is 1.0 g/cm3, make a prediction about whether each ball will float in water. record your prediction in table a. what is the estimated density of the table tennis ball? record your answer to the nearest hundredth