The charge of an atom from an excited state to the ground state always requires

a. an increase in electron energy

b. release of visible light

c. absorption of energy

d. emission of electromagnetic radiation

Are diatomic compounds ionic or covalent?

What Is The frequency of an X Ray That had A Wavelength of 1.5 * 10^-9

Which factor does not affect the resistance of a material? A. thickness B. weight C. length D. temperature

Avogadro's law states that at a given temperature and pressure, what quantity is constant?

Which list shows the development of atomic models in chronological order? plum pudding, solar system, electron cloud solid ball, electron cloud, solar system plum pudding, solid ball, solar system

A refrigerator is a system. The energy input into the refrigerator system (in the form of electricity) is the same as the amount of energy output from the system. Which of the following best describes the energy output of the system?

A 1,120 kg car is travelling with a speed of 40 m/s. Find its energy.

3. Calculate the amount of current through a 45-watt light bulb that is connected to a 120-volt circuit in your home.

Are oranges called oranges because oranges are orange, or is orange called orange because oranges are orange?

An object at rest has no net force acting on it. a. True b. False