Chemistry, 01.12.2019 20:31 gracedaniels68

How could you ensure that all the spectroscopes created the same calibration line and equation?

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How could you ensure that all the spectroscopes created the same calibration line and equation?

You would simply have to take all the spectroscopes reading and ensure that all the helium lines are recorded in regard with the scale along with their colors and wavelengths. All this data should be graphed on a calibration plot and analyzed.

I hope it helps, Regards.

Answer from: lelseymota123

In order to ensure that all the spectrosocpes created the same calibration line and equation, one must follow National Institute of Standards and Technology (NIST) standards for comparison.

NIST is authorized to issue certificate for calibration which certifies that the calibration line and equation are upto the standards decided.

Answer from: Quest

assuming that your periodic table has eighteen columns, you should highlight the four elements in the third column from the left of the table.

explanation

neutral atoms of elements after calcium contain d electrons. the energy of d orbitals of a particular main shell lies between the energy of the s and p orbitals of the next main shell. for example, electrons in the $3d$ have energy higher than those in the $4 s$ orbital while lower than those of the $4 p$ orbital.

by the aufbau principle, electrons fill orbitals one at a time, starting from those of the lowest energy. the $4s$ orbital is therefore filled right after $3p$ orbitals and before $3 d$ orbitals.

potassium has electron configuration $[\text{ar}] 4 s^{1}$ and calcium $[\text{ar}] 4 s^{2}$ . the s orbital of a main shell holds a maximum of two electrons. the next element would thus have the electron configuration $[\text{ar}] 4 s^{2} \; 3d^{1}$ and satisfy the requirements.

a neutral atom of the element contains three electrons on top of the most recent noble gas element. it should thus be placed in the third column of the periodic table. both scandium and yttrium would satisfy the conditions. an aufbau diagram indicates that the 4f orbital is filled before the 5d. however, it appears that exceptions exists for both lanthanum and actinium. neutral atoms of the two d-block elements also demonstrate the $ns^{2} \; (n-1) p^{1}$ and should be highlighted as well.

Answer from: Quest

if you're asking what comes out, it's steam.

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