consider the sodium vapor lamps described in question 7. how much energy is emitted by 45.8 mg of sodium atoms emitting light at this wavelength? assume each sodium atom emits one photon. answer in joules and round to the nearest tenth.

Ithink it’s 98 because jajajjajansmsmjs

Answerthe valence of an element or radical is equal to the number of positive or negative charges on the ion.

Answer: 1.4 seconds which is the third optionexplanation: current is defined as the flow of charge per timetherefore, the equation that relates current, charge and time can be expressed as follows: i = δq / δtwhere: i is the current given = 1.8 ampereδq is the charge given = 2.5 coulombδt is the time required for the flow of the given charges to give the 1.8 ampere.substitute with the givens in the above equation to get the time as follows: 1.8 = 2.5 / δtδt = 2.5 / 1.8 = 1.38888 which is approximately 1.4 secondshope this was !