The octet rule is - Study guides, Class notes & Summaries

Which one of the following lists shows the correct order of biological organization? - Population, community, ecosystem, biosphere A modification that makes organisms more suited to their environment is called a/an: - Adaptation During a scientific experiment, the control group is: - Identical to the experimental group in all areas except the variable being tested When an atom has 2 or more electron shells, the outer shell will be most stable if it contains 8 electrons. This concept is cal...

Test Bank Principles of Anatomy and Physiology 16th Edition Tortora All Chapters (1-29 Questions and Answers A+ Graded 100% Verified) Testbank Chapter 1. An Introduction to the Human Body Multiple Choice 1. This is the study of the functions of body structures. a. Anatomy b. Physiology c. Dissection d. Histology e. Immunology Ans: B Difficulty: easy Feedback: 1.1 2. This is defined as a group of cells with similar structure and function. a. Tissue b. Organ c. Mol...

the octet rule is correct answers when atoms bond, they lose, gain, or share electrons to get a full outer (valence shell) energy level which has 8 electrons to start a lewis structure, pick the atom that is usually correct answers the least electronegative (except H) the first in the formula lowest group number if the two atoms are in the same group correct answers select the one in the highest period To avoid the wrong number of electrons you should correct answers count the electro...

Knew ton Alta Chapter 4 Practice Exam Questions and Answers Graded A+ What is the chemical formula for the ionic compound magnesium oxide? a. MgO b. MnO2 c. Mg2O d. Mg2O3 a. MgO Magnesium forms a 2+ ion and oxygen forms a 2− ion. Putting these ions together gives the formula MgO, which is named magnesium oxide. What is the name of the oxyacid with chemical formula H3PO4? a. Phosphorus acid b. Phosphoric acid c. Phosphate acid d. Hydrophosphoric acid b. Phosphoric acid ...

Bio 210 lecture exam 1 questions and answers rated A+ Anatomy studies the form and structure of the body. Physiology examines living organisms and their parts of how they function Microscopic anatomy examines structures that cannot be observed by the unaided eye Two main subdivisions of microscopic anatomy cytology and histology cytology study of cells Histology study of tissues Gross anatomy or macroscopic anatomy investigates the structure visible to the aided eye Sy...

How many bonds can nitrogen have? Which rule or principle should be used? A) Five bonds; octet rule. B) Three bonds; octet rule. C) Three bonds; the Hund's rule. D) Five bonds; the Aufbau Principle. correct answer: B When two hydrogen atoms meet, they will attract to each other and form a bond (and a H2 molecule). Why? A) Because electrons like to stay together. B) Because electrons like to be paired up. C) Because there is attraction between the electron in one hydrogen atom an...

BIO 181 Exam# 1 (Chapters 1, 2, 3, 4 and Labs 1, 2, 3)Describe the six characteristics of all living organisms. - correct answer Cellular Organization: made up of cells Ordered Complexity: very complex Sensitivity: responds to environment Growth, Development, and Reproduction: Energy Utilization: make energy and convert to usable Homeostasis: maintain internal factors at a steady rate Evolutionary Adaption: changes based on environment Define hypothesis. Describe two traits that a good...

ACS General Chemistry 1 studysheet Exam 124 Questions with Verified Answers 56=Mass # (A) 26= Atomic # (Z) Fe= symbol - CORRECT ANSWER 56= 26= Fe= Mass Number - CORRECT ANSWER Proton+ Neutrons Atomic Number - CORRECT ANSWER # of protons/electrons (equal in elemental form) - superscript - CORRECT ANSWER Add e- + superscript - CORRECT ANSWER subtract e- Isotope - CORRECT ANSWER Diff number of neutrons Isomer - CORRECT ANSWER two or more compounds with the same # of elemen...

Ionic bonds: are characterized by electrostatic attraction of opposite charges between atoms consist of a uniform distribution of atomic nuclei surrounded by delocalized electrons are arranged as individual bonds between a single cation and a single anion are characterized by the mutual attraction of shared electrons between atoms are characterized by electrostatic attraction of opposite charges between atoms Transition metals: typically gain electrons to fill the outermost ...

The fundamental unit of life is the correct answers e. cell. Heterotrophs obtain their energy from correct answers c. other organisms. The initial accumulation of oxygen in the atmosphere was the result of photosynthesis from an organism most like modern correct answers a. cyanobacteria (blue green algae). Ozone is important to life on Earth because it correct answers c. blocks much ultraviolet radiation. Eukarya include correct answers e. All of the above The part of the atom tha...