Which of the following statements does not describe the structure of an atom? ♡Inside the nucleus of an atom are protons and neutrons.

♡Protons are positively charged sub-atomic particles.

♡Electrons are negatively charged sub-atomic particles.

♡Most of the mass of an atom comes from the electrons cloud.

Which statement correctly describes metallic bonds? a. they form when certain atoms lose electrons and other atoms gain electrons. b. they involve an attraction between anions and cations. they always involvpoth a metal and a nonmetal. d. they can only form between atoms of the same element. e. they form because electrons can move freely between atoms.

Americium-241 undergoes fission to produce three neutrons per fission event. if a neutron-absorbing material is mixed in with this sample so that the rate of neutron production drops down to 1.8 neutrons per fission event, which will be effective at achieving a critical mass? check all that apply. remove a deflective shield surrounding the sample. remove absorbent material mixed in with the sample. compress the sample of americium-241.

Which of the following is most likely true about water in chemical solutions?