The bohr model of the atom suggest that the protons and neutrons are found in the nucleus and the electrons orbit the nucleus much like planets around the sun. how is our modern model of the atom different from this model?

Hello! This is actually one of my favorite topics to talk about, so I’ll try to sum it up.

Bohr’s model is the one most commonly used in school settings because of the way electrons are classified based on energy capacity. Higher energy electrons are located at lower primary and secondary energy levels, and it helps with comprehension. This model does closely mimic stellar phenomena, and is also similar to rungs on a ladder, with the ground being the nucleus.

Schrödinger’s model is the newest model, published in the 1920s. His model encapsulates a “cloud” of electrons orbiting the nucleus, lacking a definite structure of order. Unlike Bohr’s model, Schrödinger’s illustrates the rapid fluctuations of energetic capacity of free electrons, as they act very erratically. Instead of classifying the electrons individually, Schrödinger created a system of descriptive formulae that tell the “chance” of an electron being in a certain area of the cloud. For this reason, many curriculums choose to adapt the Bohr model in their teaching, especially in lower grade classes, to help with overall comprehension, and, then, over time, integrate Schrödinger methodology to help “modernize” the quantum concept.

Hope this helps!

I have no idea what this virtuoso dude is talking about, but the answer you are looking for is that the electrons travel around the nucleus in an electron cloud.

Answer : option c) heat is released during the process.explanation :

the enthalpy of formation of water is given as -285.8kj/mol, which states that the enthalpy of formation is negative.

negative enthalpy of formation indicates that the heat is released during the reaction process. the heat is released from reaction to the surroundings the enthalpy is expressed with a negative sign with the energy given out in the reaction process.

the formation of water takes place by giving out heat which is -285.8 kj/mol.