Using the periodic table and your knowledge of atomic structure. compare the number of electrons in a carbon-12 and carbon-14 isotope.
a) both have 6 electrons.
b) carbon-12 has 6 electrons and carbon-14 has 8 electrons.
c) carbon-12 has no electrons and carbon-14 has 2 electrons.
d) carbon-12 has 12 electrons and carbon-14 has 14 electrons.

Explain why the aperture of the spherical mirror should be small compared to the radius of curvature of the mirror.

A26 cm object is 18 cm in front of a plane mirror. a ray of light strikes the object and is reflected off the mirror at a 42-degree angle. what is the angle of reflection? degrees what type of image is formed? what is the size of the image? cm

What type of relationship exists between the length of a wire and the resistance, if all other factors remain the same? o a. resistance is directly related to length. ob. resistance is directly related to the square of the length. c. resistance is inversely related to the length. d. resistance is inversely related to the square of the length. reset next