How did later chemists change Mendeleev’s periodic table? A. They included physical properties such as melting point and density.

B. They used atomic number instead of atomic mass to organize the elements.

C. They used atomic mass instead of atomic number to organize the elements.

D. They included chemical properties such as bonding power.

Which example has gravitational potential energy? a.a horse slowing down from a run b.an apple about to fall from a tree branch c.a bicycle being pedaled down a horizontal path d.beaker sitting on the floor

What is the energy of a photon of ultraviolet radiation with a frequency of 4.4 × 1015 hz? planck’s constant is 6.63 × 10–34

What type of relationship exists between the length of a wire and the resistance, if all other factors remain the same? o a. resistance is directly related to length. ob. resistance is directly related to the square of the length. c. resistance is inversely related to the length. d. resistance is inversely related to the square of the length. reset next