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What happens to atoms when rocks melt?
The atoms in the rock begin joined together as molecules, when heated these individual molecules become less tightly bonded together and hence, flow as a liquid. Depending on the type of rock these molecules may reform into a different crystalline structure than they started (as happens when limestone turns to marble). As for the individual atoms, the only thing that happens to them is their electrons speed up and jump up energy levels, just like any other heated atom.
Which term describes energy that is required to get chemical reactions started?
Activation energy is the term used to describe the energy required to start a chemical reaction by breaking the initial bonds between atoms or molecules. This energy barrier must be overcome in order for the reaction to proceed.
In which energy levels do the electrons have more energy?
In any atom, the electrons that have the most energy are the outermost, because the greater energy an electron has, the greater its velocity, and when anything has greater velocity, it has a greater momentum and a greater orbit. Think of a planet orbiting the sun. If the planet were faster, it would start to have greater inertia and be affected by the sun's gravity less, causing the orbital radius to increase. The case is similar with electrons. Since energy gives electrons a higher velocity, they start to orbit farther away from the nucleus. Therefore, the electrons in the outermost energy level or orbital always have the greatest energy and are less stable because of it.
As heat is added to a solid substance the atoms do what and move apart?
As heat is added to a solid substance, the atoms start vibrating faster and with more energy. This increased vibration causes the atoms to move farther apart from each other, leading to thermal expansion of the substance.
When do d orbital start getting filled?
after the s orbital of the next highest energy level
Why a stairway is a good model for the energy levels in a atom?
A stairway is a good model for the energy levels in an atom because there is a 'main floor' ( the nucleus ) and steps ( the energy levels ). The nucleus is the start of the stairway of the energy levels, and the other energy levels go off of the nucleus. The first energy level can hold 2 electrons, the second energy level can hold 8. The third energy level can hold 18, and the fourth energy level can hold 32 electrons. In order for an element to be as stable as a noble gas, the outermost energy level has to be full, so sometimes an atom will gain or lose electrons to fill it's outer energy level. Other times it might share electrons with other atoms, so that they don't have to gain or lose a lot of electrons. An example of this would be H2O ( water ). There is one oxygen atom with two hydrogen atoms connected to it, and sharing their electrons with each other.
When the cloud contracts and powerful reactions start to turn hydrogen atoms into helium atoms to produce energy what forms?
Nuclear
What countries took a head start in conserving energy?
Europe. ask a f**ing scientist!!!
When the cloud contracts and powerful reaction start to turn hydrogen atoms into helium atoms to produce energy an?
Probable you think to a fusion reaction.
When the clouds contracts and powerful reactions start to turn hydrogen atoms into helium atoms to produce energy a forms?
You think to nuclear fusion.
Describe Why a stairway is a good model for energy levels in an atom?
A stairway is a good model for the energy levels in an atom because there is a 'main floor' ( the nucleus ) and steps ( the energy levels ). The nucleus is the start of the stairway of the energy levels, and the other energy levels go off of the nucleus. The first energy level can hold 2 electrons, the second energy level can hold 8. The third energy level can hold 18, and the fourth energy level can hold 32 electrons. In order for an element to be as stable as a noble gas, the outermost energy level has to be full, so sometimes an atom will gain or lose electrons to fill it's outer energy level. Other times it might share electrons with other atoms, so that they don't have to gain or lose a lot of electrons. An example of this would be H2O ( water ). There is one oxygen atom with two hydrogen atoms connected to it, and sharing their electrons with each other.
At what stage of reaction do atoms have the highest energy?
Atoms have the highest energy at the transition state of a reaction, also known as the activated complex. This is when the reactants have absorbed enough energy to break old bonds and start forming new ones.
What describes the energy of activation?
Activation energy is the least amount of energy needed to start a chemical reaction. It is used to activate atoms or molecules in order for them to begin a chemical reaction.
What does radioactive decay produces .?
The energy is stored in the atoms - in the forces between protons and neutrons - from the start, as a type of potential energy.
How does the iron rod heat up?
When an iron rod is subjected to heat energy, the atoms within the rod start vibrating more rapidly, which results in an increase in temperature. This increased vibration causes the rod to heat up as the kinetic energy of the atoms is converted into thermal energy.
At what age did albert Einstein start as a scientist?
At age sixteen he started as a scientist.
When the cloud contracts and powerful reactions start to turn hydrogen atoms into helium what kind of energy does it produce?
The fusion of hydrogen atoms into helium in a contracting cloud produces nuclear energy in the form of heat and light. This process releases a tremendous amount of energy, which powers the brightness of stars like the sun.
