Which element has the greatest electronegativity? a. Rubidium
b. Silver
c. Tin
d. Iodine

Why should the scientific method be used to answer a question? a. it provides a way to test an idea without any bias. b. it provides a way to test a hypothesis. c. it provides a way to ensure all hypotheses are proven correct. d. it provides a way to quickly turn a hypothesis into a scientific theory.

Why does a red shoe appear red in daylight

If the atomic mass of an atom is 34 and the atom contains 13 protons, how many neutrons does the atom contain?