The atomic model - Study guides, Class notes & Summaries

CEM 141 MSU Exam 2 Questions and Answers Already Passed Lights acts as what? Particle and wave. Wavelength The distance (m) of waves from peak to peak. Short: x-ray (red), long: infrared (blue) Short - higher energy Long - lower energy Frequency (V) The number of wavefronts per second. Highest: x-ray Velocity of Light C = 3.00 X 10^8 = wavelength X frequency Amplitude The intensity, height of peaks of waves. Highest: blue light Energy of Wave (J) Increases as frequency i...

1. What does the acronym ESD stand for? A. Electrostatic Discharge B. Electrostatic Device C. Electromagnetic Sensitivity Diac D. Electrostatic Damage A. Electrostatic Discharge Current amounts between ______ and _____ can be lethal. A. 100mA, 200mAB. 10mA, 33.3mA C. 33.3, 75.6mA D. 4mA, 10mA A. 100mA, 200mA What is the number one concern in regards to electrical safety? A. Proper grounding B. ESD C. Shock D. Faulty equipment C. ShockBohr's Atomic Model consists of ...

GACE Middle Grades Science 014 Rated A+ scientific method observation question hypothesis experiment analyze & conclusion hypothesis a possible explanation, that can be tested, for a set of observations (can be changed or modified) theory also referred to as a model, describes and explains why phenomena occur (can be changed or modified) law also referred to as a principle, is a statement summarizing conditions and observations independent variable is the variable that ...

Test Bank Principles of Anatomy and Physiology, 12th Edition, by Bryan Derrickson, Gerald Tortora 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. Molecules d. Compounds e. Organism Ans: A Difficulty: easy Feedback: 1.2...

Matter Anything that has mass and takes up space Solid Definite shape and volume liquid A state of matter that has no definite shape but has a definite volume. Gas changeable shape and volume Energy capacity to do work or put matter into motion kinetic energy energy in action potential energy stored energy chemical energy stored in bonds of chemical substances mechanical energy directly involved in moving matter radiant ener...

What is the difference between a compound and a molecule? - Answer-Chemical bond = molecule crystalline structure or atom by itself -- not a molecule 1 A molecule consists of two more atoms, which can be the same or different types of atom, that are linked by a chemical bond. A molecule of H2 or O2 is still a molecule, but not a compound. 2. A compound is usually a molecule as well. To be a compound, it has to have two different types of atoms, such as H2O. 3. Some compounds like NaCl are ...

Ancient greek model of the atom Atoms are tiny solid spheres which cannot be divided. JJ Thompson Discovered the electron and developed the "plum-pudding" model of the atom

Portage Learning CHEM 210 exams 1-8 and final exam Question 1 3 / 3 pts True or False: According to the Module, a compound with a molecular mass of 1,000 g/mol is considered a macromolecule. True Correct! False Question 2 3 / 3 pts True or False: Biomolecules can have only two functional groups. True Correct! False Question 3 3 / 3 pts True or False: The following functional group is an alcohol. True Correct! False Question 4 3 / 3 pts True or False: In ...

change of state from solid -> liquid -> gas ________ energy - Answer-requires energy needed to phase change from solid --> liquid --> gas comes from: - Answer-the surroundings when phases change from solid --> liquid --> gas, interactions are _______ between molecules - Answerovercome change of state from gas --> liquid --> solid ______ energy - Answer-releases what happens to the energy from a phase change from gas --> liquid --> solid? - Answer-released to su...

Straighterline CHEM101 Final Exam Questions and Answers Rated A+ total number of neutrons and protons in an atom; # protons + # electrons Mass Number Most nonmetallic elements are found in which block of the periodic table? p Ernest Rutherford disproved J.J. Thomson's plum-pudding model of the atom by showing that... Positive matter is concentrated in the central core Plants use up copious amounts of which alkali metal, preventing most of it from being washed out to sea? Potassiu...