Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
Explain the Bohr's model?
Bohr's Model : Electrons move around the nucleus at tremendous speeds and occupy most of the space in an atom. The exact position or location of an electron at any given moment can only be predicted on the basis of probability. In a widely accepted model of the atom originally proposed by Neils Bohr, electrons move in spherical spaces called orbitals, or shells, which correspond to different energy levels. Electrons are distributed according to their energy levels, with the higher energy electrons residing in the outer shells. The innermost shell contains only 2 electrons. In common elements, the next outer shells contain 8 electrons each.
Atoms either gain, lose, or share electrons in the outer shells. Because the outer shells of many atoms are incomplete, most atoms will interact with other atoms during chemical reactions to achieve stable outer shells. The number of electrons that an atom must either gain, lose, or share to complete the outer shell is known as its valence, or oxidation number. For example, carbon has six electrons, two in its first energy level and four in the outer level. Thus, it can form a stable outer shell by gaining, losing, or sharing four electrons to complete its outer shell when it joins, or bonds, with another atom or atoms to form a compound. The following table lists the oxidation numbers of some important ions frequently used in Biology.
Define the control of tear production. Control of Tear Production The lacrimal secretary system was initially thought to be comprised of two parts, basic secretors and r
What is the difference between an ecosystem and a biome?
Q. Explain about Climate Regulation? By giving off moisture through their leaves and providing shade, plants help keep us and other animals cool. Forests are especially good cl
Sterility in Angiosperms Sterility in angiosperms may arise due to several causes. Either the anther may not be formed, or anthers are formed but meiosis may be abnormal. A
COMMON EQUINE DISEASES - 1 . INFLUENZA OR PINK EYE - Pink eyes. Swallon eye lids. 2. STRANGLES - Fever, dullness, depression, nasal discharge, lumpy a
M a g n etic resonance imaging (MRI): It is in use as a clinical diagnostic tool since 1980. The distribution of hydrogen nuclei (protons), present in cellular wa
What is the Implant Placement The failure to place an implant in the correct location in the buccolingual plane, mesiodistal plane and the inciso cervical plane results in the
define stds give 5 examples of stds give signs, symptoms, treatment and prevention of each example
Determine the research done with Luria Nebraska battery Research done with the Luria Nebraska battery determined 1) Whether it discriminates among brain damaged patients in
What is Implant Failure The total failure of the implant to fulfill its purpose which are functional, esthetic and phonetic because of mechanical or biologic reasons.
Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!
whatsapp: +91-977-207-8620
Phone: +91-977-207-8620
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd