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.
Explain the Control of Air Pollution a. Air belongs to everyone Need it to treat air pollution as public problem b. Air pollution is an inevitable concomitan
What are some prophylactic measures against ascariasis? The main prophylactic calculates against ascariasis are: efficient washing of vegetables and other foods; basic sanitar
Uncomplicated Q Wave MI : CABG has very little place in cases of uncomplicated Q wave myocardial infarction. However the place of urgent surgery has to be compared to thrombo
Define the Protective of Vitamin C role as an antioxidant? Vitamin C is a powerful antioxidant because it can donate a hydrogen atom and form a relatively stable ascorbyl free
Question 1 What is fixative? Discuss the characteristics of a good fixative. What is the importance of using a good fixative for tissue processing? Question 2 What is embe
BLOOD - Blood is a mobile connective tissue composed of a fluid, the plasma and the cells, the blood corpuscles. Blood is basis of life. Blood is the softest tissues
What are the four characteristics that all chordates have at some stage of their lifecycle ?
Give the introduction of genesis of coronary artery diseases and risk factors? Cardio-vascular diseases have their roots in the structure and functional alterations in the vasc
Preparation of ICU Cardiac surgical ICU is generally connected to the operation theatre so that the patient can be wheeled into the ICU after surgery and also to wheel back
Q. Water has key participation in organic reactions. What are examples of two types of organic reactions in which water is respectively incorporated or liberated in the products of
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