kinetic energy is the negative of total energy. K.E. = -E also P.E. is equal to negative of two time of total energy. P.E.=-2E
50) A triply ionized beryllium ion?Be3+, (a beryllium atom with three electrons removed), behaves very much like a hydrogen atom except that the nuclear charge is four times as great. For the hydrogen atom, the wavelength of the photon emitted in the n =2 to n=1 to transition is 122 nm. What is the wavelength of the photon emitted when a?Be3+?ion undergoes this transition?
Answer is:
7.60 nm
Explanation:
Related Atoms and Nuclei MCQ with Answers
Answer is:
0.999
Explanation:
99.9 percentage of the mass of an atom is concentrated in the nucleus
Answer is:
atomic mass units (u)
Explanation:
in atomic mass units (u) units is mass measured on the atomic scale
Answer is:
1/12th?of the mass of the carbon (12C) atom.
Explanation:
One unified atomic mass unit is approximately the mass of one nucleon (either a single proton or neutron) and is numerically equivalent to 1 g/mol. It is defined as one twelfth of the mass of an unbound neutral atom of carbon-12 in its nuclear and electronic ground state
Answer is:
a proton, an electron and an antineutrino
Explanation:
A free neutron decays into a proton, an electron and an antineutrino