Periodic trends vary as we move across the periodic table. in general, as you move across a row in the periodic table a) ionic size increases. b) atomic radius decreases. c) nuclear charge decreases. d) ionization energy decreases.

What will a positive and a negative charge do if they are separated from each other?

One object has a mass of 1 kg and another object has a mass of 3 kg. if the speeds are the same, which of the following is true about their kinetic energy?

Ahypothetical metal has an orthorhombic unit cell for which the a, b, and c lattice parameters are 0.413 nm, 0.665 nm, and 0.876 nm, respectively. (a) if there are 8 atoms per unit cell and the atomic packing factor is 0.536, determine the atomic radius (in nm). (b) if the density is 3.99 g/cm3, calculate the metal's atomic weight (in g/mol).