Neils bohar proposed his atomic model in 1913.
He describe that's electron travel in a circular orbit surrounds the neuclus of an atom.each orbit has quantized energy and size. Energy is transmitted when an electron jumps from one to other orbit near to nucleus.and it absorb energy when it jumbs away from nucleus.he also said that these electrons are restricted to fixed orbits. In excited state of electron, they absorb or emitt photon with specific wavelength.
Statement B is true because atoms are single particles that come together to form compounds and molecules.
Answer:
89.1 N
Explanation:
W = m gm = 55.0 x 1.62 = 89.1 N
What ever your demcial is move it to the left twice until there is no demcial like 9.8 move twice 980
I hope this is the answer that you are looking for .