Lithium has a work function of 2.3ev. If 400nm light is incident on it, what is the maximum kinetic energy ? Chemistry Bohr Model of the Atom Calculations with wavelength and frequency
No. A comma precedes such as when what follows is an example of whatever went before. In this case, it is nonrestrictive. (For nonrestrictive constructions: use a comma.).
In this worksheet, students practise punctuating direct speech, including the use of a comma before closing speech marks.n this worksheet, students practise punctuating direct speech, including the use of a comma before closing speech marks.