I’m pretty sure it’s B
Hope that helps
Dalton's atomic theory taught that all matter composed of atoms (inseparable and cannot be destroyed).
<u>Explanation:</u>
Dalton's atomic theory, the initiative comprehensive approach to explain all matter based on atoms and its properties. He proposed this theory based on the law of mass conservation and constant composition law. The importance of Dalton's atomic theory are:
Everything consists of atoms, which are inseparable elements of matter and cannot be impaired. All element's atoms are identical. Atoms of different elements differ in their sizes and masses. Compounds are created by simply bonding atoms and creating complex atoms (molecules).
Answer:
1. A photon is emitted by the atom.
2. More energy is emitted or absorbed for case 2
Explanation:
The Bohr's model of the atom was based on quantum mechanics idea. He suggested that electrons move in specific spherical orbits round the nucleus.
The claims of his model emphasized on the premise that electrons only move in permissible orbits or energy levels round the nucleus.
The ground state is the lowest energy state available where n= 1.
The excited state is energy levels of n = 2,3,4 .....
Problem 1
For an electron to return to the ground state from a higher energy level, i.e from 5 to 2 in case 1, energy is emitted in form of photons.
Problem 2
More energy is emitted or absorbed when an electron moves from a higher energy level to a more lower one or jumps from a lower energy level to a more higher one.
