True/False: The Earth's core is completely solid, and the only liquid portion of the Earth's layers is the crust.

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.

Select the three ways that the parallel-plate capacitor differs from a car battery.

Wavelength of 125 meters is moving at a speed of 10 m/s. what is it's frequency?