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the policy process needs not to be exclusively everyone. Bernard and D Johnston Division of Neuroscience Baylor College of Medicine Houston Texas 77030 Submitted 24 March 2003 accepted in 64257nal form 6 May 2003 Bernard C and D Johnston Distancedependent modi64257able threshold for action potential backp Suppose you went to the video store and all the videos were mixed together. How could you tell the comedies from the action movies? If the videos were not arranged in a pattern, you wouldn’t know what kind of movie you had chosen.. Beta Science . Mr. McMartin. Vocabulary. Element: a substance that cannot be separated or broken down into simpler substances by chemical or physical means.. Pure Substance: a sample of matter, either a single element or a single compound, that has definite chemical and physical properties.. What makes up matter?. By Amelia. Atoms. : an atom is the smallest particle of an element. Atomic number. : the number of protons in a nucleus is the elements atomic number. Each element is made of one kind of atom, so elements are called pure substances . Scientists classify elements into groups based on their properties. . A . physical property. is a characteristic of a substance that can be observed without changing the substance into another substance. Color, hardness, and shine (or . Classification of . elements: . The arrangement of elements in such a manner that elements with similar properties are grouped together while elements with dissimilar properties are separated. .. The classifications are as follows. Mrs. . aRusso. 8-1. Matter . Anything that has mass and takes up space.. It is the ‘stuff’ that makes up everything in the universe.. Properties of Matter. Hardness, texture, shape, temperature, flammability. E. ng. . Moises Castro Flores. Metals. We call metals to . e. ach . of the chemical elements that conduct heat and electricity, with a characteristic shine, and solid at ordinary temperature, except mercury.. Result Parameter Name (AH) Result Value (AM) Result Value Units (AN) Result Data (AS) Result Comment (AZ) Fecal Coliform 10000 CFU/100mL G TNTC - Too numerous to count Revision History Revision Dat All pupils will be able to (Baseline): . Describe how properties of the elements in Group 1 depend on the outer shell of electrons of the atoms.. Most pupils will be able to (Further):. . Explain how properties of the elements in Group 1 depend on the outer shell of electrons of the atoms.. Russian chemist. 1869 – discovered a pattern to the elements. Grouped the elements according to their similar properties and eventually arranged them in order by atomic mass.. THIS CREATED THE PERIODIC TABLE OF THE ELEMENTS. L.O: To know what some early versions of the periodic table were, and to understand how the periodic table . is arranged now. Sunday, 30 August 2015. Look at the periodic table you’ve been given, and highlight any patterns you see. . What is an element?. A element is a pure substance made of one type of atom. Elements are divided into metals and non-metals. Examples of non-metal elements include carbon, oxygen, hydrogen, and nitrogen. Dr. . Nouf. H. Alotaibi. P-block Elements- V A elements. General trend. Electron configurations ns. 2. np. 3. (n is the period number). The s orbital is completely filled and p orbital is half filled which makes them stable..