Subatomic model of matter Study guides, Class notes & Summaries

TEST BANK FOR CHEMISTRY –THE CENTRAL SCIENCE 15TH EDITION BY THEODORE | REAL TESTED EXAM QUESTIONS ANSWERED CORRECTLY | LATEST UPDATE Chemistry: The Central Science, 15e (Brown, et al.) Chapter 2 Atoms, Molecules, and Ions 2.1 Multiple-Choice Questions 1) A molecule of water contains hydrogen and oxygen in a 1:8 ratio by mass. This is a statement of . A) the law of multiple proportions B) the law of constant composition C) the law of conservation of mass D) the law of conservat...

sig fig zeros - Answer-1. zeros at beginning NOT signif 2. zeros between ARE SIGNIF 3. zeros at end of number are signif if number contains a decimal point 3.489 x (5.67-2.3) - Answer-3.489 x 3.(3)7 11.75793 12 matter - Answer-composed of mass and must occupy space scales of matter - Answer-macroscopic, microscopic, particulate. scientists think on a particulate scale, observe macroscopically states of matter - Answer-1. change from solid to liquid to gas as temp increases 2. motion of...

Chapter 02 Atoms and the Periodic Table 1. The scientist who determined the magnitude of the electric charge on the electron was A. John Dalton. B. Robert Millikan. C. J. J. Thomson. D. Henry Moseley. E. J. Burdge. Blooms: 1. Remember Difficulty: Easy Gradable: automatic Subtopic: Structure of the Atom Topic: Components of Matter 2. When J. J. Thomson discovered the electron, what physical property of the electron did he measure? A. its charge, e B. its charge-to-mass ratio,...

Earth and Space Science Praxis 2 Exam 2023 Mercator Projection - ANS-Cylinder; shows entire Earth; distorts POLES Polyconic Projection - ANS-Cone; landmasses close to accurate; accurate where sheet touches Gnomic Projection - ANS-sheet (over any point); used for poles; distorts LANDMASSES Telescope - ANS-optical instrument used to observe objects by collecting electromagnetic radiation Spectroscopy - ANS-Branch of science; Investigates and measures spectra produced when matter intera...

BIOL 1P91 Midterm Verified Questions With Answers Matter - ANSWER anything that has mass and occupies space States of matter - ANSWER solid, liquid, gas Atoms - ANSWER smallest functional units of matter that form all chemical substances Atoms cannot breakdown further into substances by ordinary means (will not happen in biological systems) - ANSWER true subatomic particles - ANSWER protons (+), neutrons (neutral), electrons (-) model of an atom - ANSWER Nucleus surrounded by cloud...

General Chemistry Placement Test, With Complete Solutions Updated | 20242024. molecule two nonmetal atoms combined form a covalent compound called a diatomic molecules H2,O2,F2 Matter Anything that has mass and takes up space Element A substance that cannot be broken down into simpler substances Compound A pure substance made of two or more elements CHEMICALLY combined. Compound Can be decomposed by chemically Mixture A PHYSICAL blend of two or more components (aq) aqueous mi...

Absorption When a wave transfers energy to the energy stores of a material. Acceleration A measure of how quickly velocity is changing. Accurate result A result that is very close to the true answer. Activity (radioactive) The number of nuclei of a sample that decay per second. Air resistance The frictional force caused by air on a moving object. Alpha decay A type of radioactive decay in which an alpha particle is given out from a decaying nucleus. ...

Atomic Theory Questions & Answers Democritus - Answer-Proposed concept of atoms without experimental evidence John Dalton - Answer-Developed atomic theory based on experimental evidence Dalton's Atomic Theory - Answer-Elements made of indivisible atoms, atoms rearrange in chemical reactions, compounds form in simple ratios Aristotle - Answer-Denied atomic theory, argued for continuous, non-divisible matter Errors in Dalton's Atomic Theory - Answer-Atoms are divisible, not all atoms of a...

Chapter 1 Chemistry: The Science of Change 1. What is a unifying principle that explains a body of experimental observations? A. law B. hypothesis C. theory D. phenomena E. prediction Accessibility: Keyboard Navigation Bloom's Level: 2. Understand Chapter: 01 Chemistry: The Science of Change Difficulty: Easy Subtopic: Scientific Method Topic: Study of Chemistry 2. Which of the following is a tentative explanation for a set of observations? A. law B. hypothesis C. theory D. phenomen...

Why are alpha particles deflected by the nucleus? - Answer-Because both the alpha particles and the nucleus are positively charged and so the alpha particle is repelled. Is this statement (Dalton's Theory) true or false and why? "All atoms of an element are identical and have the same mass and properties." - Answer-False. Atoms of the same element can have different numbers of neutrons. What is the evidence that electrons are subatomic particles? - Answer-The nature of the electron is i...