What is the atomic number of an atom equivalent to? the number of protons plus the number of neutrons in the nucleus

the number of protons in the nucleus

the number of neutrons in the nucleus

the number of electrons outside the nucleus

List four observations that indicate that a chemical reaction may be taking place

Acamcorder has a power rating of 17 watts. if the output voltage from its battery is 7 volts, what current does it use?units:

Predict the relative bond lengths of the three carbon-oxygen bonds in the carbonate ion (co2−3). what would you expect the charge to be on each oxygen? match the words in the left column to the appropriate blanks in the sentences on the right. make certain each sentence is complete before submitting your answer.