PPT-Relative atomic mass

Mass of individual atoms Lesson 1 introduction to project and atomic structure The Atomic mass unit amu Atomic particle Real mass g Relative mass amu Proton p . #1: Rubidium has two common isotopes, . 85. Rb and . 87. Rb. . If the abundance of . 85. Rb is 72.2% and the abundance of . 87. Rb is 27.8%, what is the average atomic mass of rubidium?. PROCEDURE:. Topic 2.2. Review of Topic 2.1. X. Mass Number (A). protons + neutrons. A. Atomic Number (Z). n. umber of protons. Z. n+/n-. Charge (n) . Atoms have no charge, so this is left blank.. Ions are atoms that have gained or lost electrons, the charge is indicated here.. Atoms and Reactions Lesson 1. 1.1.2. Atomic Masses. WARM UP:. Work out the relative molecular mass of:. Calcium carbonate - CaCO. 3. Magnesium chloride - MgCl. 2. . Methane – CH. 4. Copper sulphate - CuSO. The lab technician shown here is using a magnifying lens to examine a bacterial culture in a petri dish. When scientists cannot see the details of what they study, they try to obtain experimental data that help fill in the picture.. Lesson objectives relative mass. Understand the term ‘isotopes’. Define the terms ‘relative isotopic mass’ and ‘relative atomic mass’ based on the . 12. C scale. Understand the terms ‘relative molecular mass’ and ‘relative formula mass’ including calculating these from relative atomic masses . 2011/2012. The atomic structure. The atom. Electron arrangement. Electron configuration. Mass Spectrometer. The atom. State the position of protons, neutrons and electrons in the atom.. State the relative masses and relative charges of protons, neutrons and electrons. . Atomic Mass. What is an elements atomic mass?. The weighted average of its naturally occurring isotopes. .. When looking at an element on the periodic table of elements, where is atomic mass found?. Usually the top left hand corner of each elements box. However, on the periodic table that you will use for your AP Exam(s), this number will be located below each elements chemical symbol.. Average Atomic Mass. An element can exist in a number of forms, called isotopes. Isotopes are forms of the same atom that vary in . mass as a result of a different number of neutrons..  . Isotopes. #1: Rubidium has two common isotopes, . 85. Rb and . 87. Rb. . If the abundance of . 85. Rb is 72.2% and the abundance of . 87. Rb is 27.8%, what is the average atomic mass of rubidium?. PROCEDURE:. Over the past century scientist have discovered that the atom is composed of 3 subatomic particles:. Protons. Neutrons. Electrons. Checking for understanding. Draw this diagram. Label all subatomic particles and include their charges.. Present and Future. WANG . Meng. Institute of Modern Physics, CAS. ARIS2014, Tokyo, June 2. Outline. Introduction. . atomic mass, measurement, evaluation …. Present status. . publication of . What is the word and balanced symbol equation for the Haber Process?. What are the conditions used?. Using Collision Theory explain why these conditions are used.. Challenge: Can you use the idea of equilibrium and Le . Daltons Atomic Theory. 1. All elements are composed of tiny . indivisible. particles called atoms.. 2. Atoms of the same element are identical. The atoms of one element are different from the atoms of another element.. In your notes…. Draw a model of an atom that best represents each component of that atom.. Foundations of Atomic Theory. Particle Theory of Matter. Democritus in 400 B.C.. Stated that nature’s basic particle was the atom (“indivisible” in Greek). .