Valence shell - Study guides, Class notes & Summaries

ULTIMATE AP Biology Exam Review; Questions & Answers Latest Update 100% Solved Define the following: isotope, valence shell, covalent bond, ionic bond Correct answerIsotope- one of several atomic forms of an element, each with the same # of protons, but different number of neutrons Valence shell- the outermost energy shell of an atom, containing valence electrons involved in chemical reactions Covalent bond- bond where the electrons are shared Ionic bonds- a chemical bond resulting f...

ATP correct answers Adenosine triphosphate. The energy currency of the cell. Endomembrane System correct answers A network of membranes inside and around a eukaryotic cell, related either through direct physical contact or by the transfer of membranous vesicles. oxidation correct answers Loss of electrons reduction correct answers Any process in which electrons are added to an atom or ion (as by removing oxygen or adding hydrogen) exergonic correct answers A reaction that results in ...

HESI A2 Anatomy and Physiology. 1. Anatomic position 2. Which of the following is a structure found in the upper respiratory? 3. A person who has damage to their ulnar nerve will have decreases sensation in 4. Which bone dose not articulate with any other bone? 5. Which of the following statements best describe endocrine glands? 6. Diet is important because bone are storage places for 7. Which organ is part of both the male reproductive system and the urinary system? 8. Red blood cell production...

Why do only the outer electrons leave their orbit shells? Answer Only outer electrons leave their orbit shells because electrons farthest from the nucleus are more easily freed from their orbits due to a weaker electrostatic force. What is required to have a balanced (or stable) atom? Answer The number of electrons must equal the number of protons in order to have a balanced atom. List the capacity of each of the first four orbital shells of an atom. Answer Shell: #1 = 2 electrons; #2 = 8 ...

Chem 1020 Final Exam Questions with 100% Verified Correct Answers what is the most electropositive element? - Correct Answer Li Which of the following elements has 3 electrons in the valence (outer) shell? - Correct Answer B Which of the following would you expect to have ionic bonds? - Correct Answer CsF Which of the following would you expect to have polar covalent bonds? - Correct Answer NF3 Which molecule has nonpolar covalent bonds? - Correct Answer N2 the number of electron...

EPRI: Chemistry Questions and Answers 100% Pass Properly Controlled Power Plant Chemistry Program The following are the purpose of: -Protect the reactor coolant system pressure boundary integrity -Protect fuel cladding integrity and fuel performance Minimize out-of-core radiation fields -Minimize corrosion of all secondary plant and auxiliary system components General Atomic Structure Dense nucleus includes protons (+) and neutrons (0) surrounded by dense cloud of electrons in describe orbits (...

IB Chemistry SL: Topic 4 Latest Version Graded A Ionic Bond Electrostatic attraction between oppositely charged ions Covalent Bond Electrostatic attraction between a pair of electrons and positively charged nuclei, formed as a result of electron sharing Metallic Bond Electrostatic attraction between a lattice of positive ions and delocalized electrons Polyatomic ions ions with more than one element e.g. CaCO3, Al(OH)3, Mg(NO3)2, (NH4)2SO4, Ba3PO4, LiHCO3 Lattice ions arran...

Phosphorus has an atomic number of 15. This tells us that... - Answer-there must be 15 protons True or False: covalent bonds are stronger than ionic and hydrogen bonds because atoms that are joined with covalent bonds share electrons - Answer-True An e- in a hydrogen atom exists in the first valence shell. The valence e- of Aluminum exist in the 3rd shell. Which valence shell e- have higher potential energy and why? - Answer-the valence e- of aluminum, bc higher e- shells have higher energ...

The Scientific Method - A logical, systematic approach to the solution of a scientific problem. What is science? - The systematic approach to answering questions; step by step process that is logical and rational by collecting data thru experimentation steps of scientific method - 1. observation 2. question 3. hypothesis (that is testable) 4. test/experiment 5. conclusion conclusion of scientific method - accept hypothesis OR reject hypothesis and make a new hypothesis 2 groups of an e...

covalent bonds form based on Ans:the sharing of electrons that provides an octet of electrons for each most energetically stable elements in the periodic table Ans:noble gases noble gases are also referred to as Ans:inert gases octet rule Ans:all atoms should strive to have 8 electrons in their outermost shell to achieve the most energetically stable state valence electrons Ans:electrons found in the highest energy shell of an atom (aka the highest principle quantum number, n, shell...