An excited hydrogen atom in principle can have a radius of 1.00 cm. (a) what would be the value of n for a bohr orbit of this size? (b) what would its energy in joules be?

Which of the following is considered to be a vector?               a.  temperature    b.  velocity    c.  time    d.  mass

If an atom contains 11 protons in its nucleus, predict the element with the atomic number and electronic configuration. will the number of electrons remain the same during the chemical reaction in such an atom? explain.

This is one type of line graph in which the independent variable is time plotted on the x axis and the dependent variable, also numerical, is plotted on the y axis.