No student devices needed. Know more
21 questions
Arrange in order of increasing ability to penetrate matter.
Beta, gamma, alpha
Alpha, gamma, beta
Gamma, beta, alpha
Alpha, beta, gamma
In the symbol ^{16}_{7}N what the 7 stand for?
Mass number
Atomic number
Atomic mass
Number of neutrons
The force that holds the protons and neutrons together in the nucleus of an atom is called __________.
Binding force
magnetic force
centripetal force
electrostatic force
The half-life of a radioactive isotope is 20.0 minutes. What is the total amount of a 1.00-gram sample of this isotope remaining after 1.00 hour?
0.500g
0.333g
0.250g
0.125g
Explore all questions with a free account