Which of the following equals one atomic mass unit? a. the mass of one electron b. the mass of one helium-4 atom c. the mass of one carbon-12 atom d. one-twelfth the mass of one carbon-12 atom

why is argon used in a light bulb? using the terms of the electronic structure of an argon atom.

What causes a cavern to form

Which of the following is the correct (unbalanced) equation for the reaction that takes place when solid phosphorus combines with oxygen gas to form diphosphorus pentoxide? A. P (s) + O2 (g) - -> P2O5 (s) B. P2O5 (s) - -> P2 (s) + O2 (g) C.

What type of crystal is halite crystal (rock salt) ?

How does a calorie compare to a joule

Where is the genetic code located again in the dna molecule again?

What type of reaction happens in a nuclear power plant?

C6H12O6 + O2 > CO2 + H2O

In the current model of the atom, ___. electrons and protons are mixed together in a solid sphere electrons orbit around the positively charged nucleus in set patterns called orbitals electrons travel as waves in the electron cloud that surrounds

What information could you use to determine the atomic number of an unknown element that has a mass number of 22? O A. number of ions B. number of isotopes C. number of neutrons O D. number of electrons