Which of the following isotopes would most likely be unstable and therefore radioactive?

helium-3

calcium-40

molybdenum-98

mercury-194

There is a old phrase digging a hole through the earth's center would bring you out in china if you could drill a hole from long island straight through the earth's core, where would you in fact come out

Which explains why carbon (C) is such a versatile element?

An atom of any element must contain

Which statement explains why water is classified as a compound? (1) Water can be broken down by chemical means. (2) Water is a liquid at room temperature. (3) Water has a heat of fusion of 334 J/g. (4) Water is a poor conductor of electricity.

what is a wavelength of radio wave that travels at the speed of light 3.0 x 10^8 m/s and has frequency of 200 megahertz (200 million hz)

What is the molarity of a solution containing 45.78gMgCl2 dissolved in 3.00L of solution?

What kind of wavelength do television signals have? a. Short c. Long b. Intermediate d. Very rapid

What gene is responsible for tumor suppression? A. beta - galactoside B. p53 C. alpha goblin D. beta goblin

How does ur body maintain constant tempature on a hot day?

1. What is the probability of rolling a five on one die three times in a row? 2. The allele for a cleft chin, C, is dominate among humans. Using a punnet square, what are the results of a cross between parents with genotypes Cc and cc