Explain why the average atomic masses of the elements listed in the periodic table usually are not whole numbers.

Which element is the least metallic between cadmium, silver, zinc, or iron?

In salt water solution, the salt is the blank

Use the de broglie's wave equation to find the wavelength of an electron moving at 7.3 × 106 m/s. show your work. note: h = plank's constant (6.62607 x 10-34 j s)