Which of the following subatomic particles are found surrounding the nucleus and have a negative charge? F negatrons

G neutrons

H protons

J electrons

Which of the dna typing techniques do you think you would choose if you had to analyze a dna sample? why?

Turbo the snail moves across the ground at a pace of 12 feet per day. if the garden is 48 feet away, how many days will it take for the snail to get there?

Ageologist determines that a sample of a mineral can't be scratched by a steel nail but can be scratched by a masonry drill bit. based on this information, the sample mineral has to be softer than a. orthoclase. b. fluorite. c. apatite. d. corundum.