Chemistry, 29.01.2020 03:05 jjxt126

Which prediction about a methane molecule would most likely be made by using both the quantum model of the atom and john dalton's model? a. when the molecule reacts new atoms are created b. the molecule contains different kinds atoms c. the nucleus is located in the center of the molecule d. electrons are located at specific locations in the molecule.

Answers: 2

Show answers

Answers

Answer from: krlx

B.the molecule contains different kinds atoms

Explanation:

Let's go through each choice.

A.when the molecule reacts new atoms are created

Both quantum model of the atom and John Dalton's model recognize that the atoms are not either created or destroyed in a chemical reation, so when a molecule reacts it forms one or more new molecules with the same atoms of the original molecule.

B. the molecule contains different kinds atoms

Indeed, John Dalton's model already considered that the compounds (molecules) are formed by the combination of different kinds of atoms. This is valid nowadays under the quantum model.

C. the nucleus is located in the center of the molecule

Firstly note that John Dalton's model did not consider the existence of a nucleus as the atom was thought to be indivisible. Secondly, quantum model considers that the nucleus is at the center of the atom, not of the molecule.

D. electrons are located at specific locations in the molecule.

John Dalton's model did not consider that the existence of electrons, since, as already said, the atoms was considered indivisible. Regarding quantum model, electrons are not located at specific locations but the model states the probability of finding the electrons in certain regions. The regions with high probability of containing the electros are called orbitals.

Answer from: Quest

Me i need

Answer from: Quest

"among the transition metal elements, manganese and zinc have a slight lowering of electronegativities. the reason behind this is that the nuclear charges of these elements are slightly weaker than the other transition metal elements due to the way their valence electrons are filled up. both manganese and zinc have their valence electrons filled up to the 4th shell with 1 pair of electrons (4s2) completely occupying it. although the electrons in the 3rd shell (3d) are yet to be paired since the outer most shell is filled up, the ability of the nucleus to attract electrons is lessened. hence, the electronegativity (or the ability to attract electrons) is lessened."

Another question on Chemistry

Chemistry, 21.06.2019 20:30

Which sentence best describes the formation of igneous rock? a- lava on the surface dries up and makes arock b_melted rocks cools and forms crystals c_rocks under tremendous heat and pressure d_magma is melted rock underground

Answers: 1

Answer

Chemistry, 22.06.2019 08:30

In the millikan oil drop experiment they determined that every drop had a charge which was a while number multiple of -1.60x10^-19. if a drop has a total charge of -9.60x10^-19 then how many excess electrons are contained within the drop?

Answers: 2

Answer

Chemistry, 22.06.2019 09:30

Mike and mitchell decide to have a foot race. they mark off a stretch of 100 yards, and recruit cindy to work the stopwatch. after running the race and looking at the results, cindy declared that mitchell was the fastest. so how did the boys times compare?

Answers: 3

Answer

Chemistry, 22.06.2019 10:00

3. how much energy in joules is required to evaporate .0005 kg of liquid ammonia to vapor at the same temperature? 4. how much energy ( in megajoules ) is given up by .75 kg of water at 0c when it freezes to form ice at 0c? 5. explain how heat works between and at critical temperatures?

Answers: 2

Answer

You know the right answer?

Which prediction about a methane molecule would most likely be made by using both the quantum model...

Questions