Electrons cannot be located between levels except when they are in the process of moving.
The limitation of the maximum number of electrons in a given energy level can be used to account for the periodic recurrence of properties as the number of electrons increases.
Explanation:
- The Bohr's model of the atom is based on quantum mechanics.
- He suggested that electrons are contained in specific spherical orbits around the nucleus.
- The orbits are also known as shells or energy levels.
- The maximum number of electrons that can be contained by an energy level is 2n².
- An electron in an energy level has a definite amount of energy associated with it at that level.
- Electrons can undergo transitions from one level to another.
Learn more:
Bohr's mode of the atom brainly.com/question/4986277
Atomic model brainly.com/question/2965079
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Answer:
Three main processes control mountain height: lateral support of mountains from tectonic forces, which stops mountains from collapsing under their own weight or pushes them up against gravity; climate-controlled erosion; and isostasy, which keeps mountains afloat on the hot and soft mantle material.
Explanation:
The potential energy diagram is a common way of depicting the reaction profile. The following are true about the diagram;
- The activation energy of the reaction is 35kJ.
- The enthalpy change of this reaction is 25kJ.
- The slope of the diagram is positive.
- The reaction is endothermic.
<h3>What is a potential energy diagram?</h3>
A potential energy diagram is a diagram that shows the conversion of reactants to products. It can tell us whether the reaction is endothermic or exothermic.
1) From the diagram, the activation energy of the reaction = 65 kJ - 30 kJ = 35 kJ
2) The enthalpy change of this reaction = 55kJ - 30 kJ = 25kJ.
3) The slope of the diagram is positive.
4) The reaction is endothermic.
Learn more about endothermic reaction:brainly.com/question/2192784
Answer:
A voltaic cell
Explanation:
A voltaic cell is a device which converts chemical energy to electrical energy. The chemical reactions that take place inside the cell causes electrons to flow from anode to cathode hence, electricity is produced. A simple voltaic cell is made by placing two different metals in contact with an electrolyte separated by a salt bridge. The cathode is the negative electrode while the anode is the positive electrode. It is also called a galvanic cell.
In a voltaic cell having a copper/copper solution half cell, reduction occurs at the cathode. Hence, at the cathode copper II ions accept two electrons and become reduced to ordinary metallic copper. This causes the blue colour of the solution to become discharged (fade) as the cell continues to function.
Answer:
15.999amu
Explanation:
There is way more O16 than any other, so O17 and O18 affect it very little.