Identify which of the following change when neutrons are added to an atom.Mass numberAtomic numberNet chargeThe atom's mass

In the interactive, start adding neutrons to the nucleus.Describe what happens to the mass number each time you add a neutron, and why.

Determine how adding the missing particles would change the atom's mass.The atom would lose massThere would be no changeThe atom would roughly double in massThe atom would slightly increase in mass

Which of the following has a charge of +1 and a mass of 1 amu ?A A neutron B A proton C An electron D A helium nucleus

An atom has a mass number of 9 and 5 neutrons. What is its atomic number?A.11B.14C.4D.19SUBMITarrow_backPREVIOUS

Which of the following changes occur within a nucleus when it emits an alpha particle?Its mass number increases by 4 and its atomic number increases by 2Its mass number decreases by 2 and its atomic number decreases by 2Its mass number decreases by 4 and its atomic number decreases by 2Its mass number increases by 2 and its atomic number increases by 22Which of the following changes occurs within a nucleus when it emits a beta (minus) particle?Its mass number stays the same and its atomic number decreases by 1Its atomic number stays the same and its mass number decreases by 1Its mass number stays the same and its atomic number increases by 1Its atomic number stays the same and its mass number increases by 13Which of the following things will NOT occur when a nucleus undergoes gamma decay?The nucleus will move to a lower-energy stateThe atomic number of the nucleus won’t changeA short-wavelength, high-frequency electromagnetic wave will be emitted from the nucleusThe mass number of the nucleus will decrease4Polonium-194 is formed by the alpha decay of radon-198.  There are 84 protons in the nucleus of a polonium-194 atom.  Calculate the number of neutrons in the nucleus of an atom of radon-198.84112110865Which type(s) of nuclear radiation will be stopped by a sheet of aluminium?Alpha particles, beta particles and gamma raysBeta particles onlyAlpha particles onlyAlpha particles and beta particles6Which of the following changes occurs within a nucleus when it emits a neutron?Its atomic number stays the same and its mass number decreases by 1Its mass number stays the same and its atomic number increases by 1Its mass number stays the same and its atomic number decreases by 1Its atomic number stays the same and its mass number increases by 1