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2010-05-06 04:35:22
2010-05-06 04:35:22

Helium had valence electron of 2 and filled the most inner ring so it is chemically robust and inert.

Outer valence electron ring contain 8 electrons so for Neon is robust as it had 2,8 electrons and Argon had 2,8,8 electrons and fill the outer ring.


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because the electron tranfer between an atoms and it doesnt belong to one atom

The are used (among with hydrogen ions) to convert ADP to ATP.

the way you look that direction is is only one model to explain..

I think, it is an individual line. Not continuos. Also, Bohr's model of the atom, Which claimed electron exist in orbit, could be used to explain the spectrum of Hydrogen.

helium is 2 times heavier than hydrogen helium is not so reactive , hydrogen is extremely flamable unlike helium.

If an electron transport chain does not obtain its supply of oxygen the electron and hydrogen protons stop flowing. This means there will not be enough protons to form ATP and the person will die.

an atom whose outer s and p orbitals do not match the electron configurations of a noble gas will react to lose or gain electrons so the outer orbitals will be full.

Explain how a research becomes a scientific knowledge

Because of their position in the periodic table, unlike the main-group elements, the transition metals in each group do not have identical outer electron configurations.

The aufbau procedure (filling order of atomic orbitals) is used to work out the electron confiturations of all atoms. However, modification should be made by applying Hund's rule. The aufbau procedure is based on a rough energy levels diagram of many-electron atoms.

Metals like calcium and magnesium react by losing electrons. Calcium and magnesium have similar electron configurations, but calcium has an extra electron shell separating the outer electrons (which are negatively charged) from the nucleus (which is positively charged). This makes it easier for calcium to lose those electrons.

1.the electrons of hydrogen atomrevoles around the nucleas in certain cercular path it is called as energy shell long as the electron revolves around the nucleas it does not loose or gain energy

Atoms are trying achieve a stable electronic configuration i.e., stable arrangement of electrons in their electron shells. All configurations are not stable. Mostly stable configuration is attained by forming an octet of electrons in outer most shell. Sometimes octet rule is violated also.

Those orbitals are more stable which are either half filled or full filled so Cr has d5 instead of d4 and Cu has d10 instead of d9.

A scanning electron microscope will scan the surface and an electron microscope looks inside.

The diagram shows the ionization energies of hydrogen. The ionization energy for a ground-state electron in hydrogen is 13.6eV. Let's jump. An electron orbits an atom of hydrogen in as low an energy level as possible. That's the ground state of hydrogen. To tear that electron away, it takes some amount of energy. In this case, it takes 13.6eV to strip off that electron. But what if the electron is in the next higher allowable energy level because the gas it hot? In that case, it takes less energy to tear that electron away because you've got a "head start" owing to the fact that the electron is in a higher orbital than the ground state. And what if it's in the next higher allowable energy level? Or the next? Less and less energy is required to strip off the electron as it moves to higher energy levels. These are the ionization energies of hydrogen. These energy levels are specific to hydrogen. Each other element will have a different set if ionization energies associated with it. And with atoms with many electrons and complex electron structures, the problem can quickly become very complex.

All atoms are hungry to have a full "ring" of electrons. Since hydrogen has 1 electon in its only ring it wants more. To have a complete ring an atom must have 2 in the first ring 8 in the second and third and fourth and so on. That is why alkali metals and halogens are so reactive, they have only 1 electron in their outer "ring." They're really not rings or obits but that is the best way to explain this.

allotropes are forms of two or more elements in thier physical state. ALLOTROPES OF HYDROGEN ortho hydrogen para hydrogen.

the number of valence electrons and their energy has an effect on an elements reactivity there are sub shells s p d ... the electrons are more stable when they are in pairs of 2 in the sub shells k has 1 electron in the 4s shell and Ca fills the 4s shell thus Ca is more stable and less reactive

Each electron carrier alternates between being reduced and being oxidized.

the same way an insulator and a conductor will work with out the electron theory!

1-He failed to explain the line spectrum of any element except hydrogen. 2-He used the electron as material particle and didn't consider its wave motion. 3-He said that its possible to determine both the speed and the location of an electron at the same time and this is practically impossible.

Philosophy is an examination of the basis for a branch of knowledge or for knowledge itself. Philosophy that does not examine is gibberish.

because of the electron configuration are different

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