How many electrons should be drawn on the model of a nitrogen
atom so that it has the same number of protons and electrons?

7

Step-by-step explanation:

protons and electrons are always going to have the same number

explanation:

infrared radiation has wavelength in the range between 700 nm and 1 mm. lets' convert these values into scientific notation, keeping in mind that:

let's start from the lower value, we have:

(we moved the dot two places to the left, so we increased the exponent by 2 units, from -9 to -7)

the higher value is:

so, the range of wavelength of infrared radiation is: