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- (a) How many electrons can be in the n=4 shell? (b) What are its subshells, and how many electrons can be in each?1. How many protons does 14/6C atom contain? 2.A hydrogen balloon that provides a 30 N upward force is connected to a 2 kg gift package with weight downward. What is the acceleration (in m/s2) of the package going up? 3.A car speeds up uniformly from 10 m/s to 20 m/s while traveling a distance of 75 m. What is its acceleration (in m/s2) during this time? complete answers pleaseA hydrogen atom in the ground state absorbs a 13.32-eV photon. To what level is the electron promoted? (The ionization energy of hydrogen is 13.6 eV). a. n = 6 b. n = 5 c. n = 10 d. n = 11 e. n = 7
- 3. An atom consists of a. one nucleus and only one electron b. one nucleus and one or more electrons c. protons, electrons, and neutrons d. answers (b) and (c)Identify the following objects as being either ... a. positive b. negative c. neutral If there is no conclusive evidence, then select all that could be true. Description of Object a, b, or c? i. An object possesses more protons than electrons. ii. An object possesses more neutrons than electrons. iii. A formerly neutral object that just lost some electrons. iv. A formerly neutral object that just gained some electrons. v. An object which attracts a negatively-charged balloon. vi. An object which attracts neutral paper bits and attracts a negatively-charged balloon. vii. An object which attracts neutral attracts paper bits and repels a negatively-charged balloon. viii. An object which attracts a negatively-charged balloon and attracts a positively-charged balloon. ix. An object which attracts a charged balloon (balloon A) which is attracted to a negatively-charged balloon (balloon B). x. An object which attracts a…C3. A Rubidium nucleus undergoes the electron capture as given by 33Rb + e¯ → AXN+Y. Assume the electron came from the K-shell of Rubidium and K-edge is 15.2 keV. Given that the mass of neutral atom 33Rb is 82.9151106u, and the mass of neutral atom 4XN is 82.9141360u. (a) Determine the values of A, Z and N. (b) Given the name of particle Y. (c) Calculate the disintegration energy of the decay (in MeV). (d) Explain why K-edge should be considered in electron capture. Express the values to 3 significant figures, if necessary.
- 3. The radius of a typical nucleus is about 5.0x10-15 m. Assume this to be the uncertainty in the position of a proton in the nucleus, estimate the uncertainty in the proton’s energy (in eV).a. 0.2 MeVb. b. 0.4 MeVc. c. 0.6 MeVd. d. 0.8 MeVe. e. 1.0 MeVWhich of the following would be closer to the nucleus? a. The ground state (n = 1) of an electron in a singly-charged helium atom. That is, a helium atom with only one electron instead of two. b. Both of these are the same distance from the nucleus c. The ground state electron for the hydrogen.True or False higher energy levels are stable. A.True B.False
- 1) a. What is binding energy of an atom? b. Write and explain atleast three Neil's Bohr postulate for hydrogen atom. c. Draw the energy level diagram of hydrogen and explain in detail the ground state, excitation state and the metastable state of an atom.Direction: Answer the following.1. This particle is found in the nucleus and has no chargea. Neutron b. Proton c. Electron d. Orbital2. This particle is found in the nucleus and has a positive chargea. Electron b. Proton c. Neutron d. Neutral3. This is a negatively charged particle found outside the nucleusa. Electron b. Proton c. Neutron d. Neutral4. What is the Law of Conservation of mass?a. Mass is created in a chemical reactionb. Mass is created in a physical changec. New chemicals formed from a chemical reaction have a largeroverall mass than the original reactantsd. Mass is never created or destroyed5. Which of the following are Subscripts in this Chemical Formula: 3Fe2O4a. 3,4b. 3,2c. 2,4How does the wave model of electrons orbiting the nucleus account for the fact that the electrons can only have discrete energy values? A. Electrons are only able to vibrate at particular frequencies. B. When an electron wave is confined, it is reinforced at only particular frequencies. C. The energy values of an electron only occur where its wave properties and probability clouds are mutually reinforcing. D. The wave model accounts for the types of orbitals an electron may occupy, not energy levels. E. None of the above