products. B. Statement of the problem. What are the other alternatives that we can do on that banana peels aside from making it as fertilizer? C. Scope and Delimitation Base on our knowledge‚ the magnesium and potassium that are on the table of elements‚ gives vitamins on our tooth. We think that if potassium and magnesium gives vitamins on our tooth‚ it is possible that it can whiten our tooth D. Significance of the study The Benefits of the banana peel to whiten our teeth is to make some people
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Electron Arrangement Purpose: The purpose of this lab is to write electron configurations‚ orbital filling diagrams‚ and electron- dot diagram for ten elements. Hypothesis: If the amount of electron is know them the configuration of the element is know. Equipment: Paper‚ Pencils Procedure: (IV) Independent Variable - Configuration of electron (DV) Dependent Variable – Multiple Energy Level (CM) Control Method – S‚P‚D‚F Orbital (CMI/C)Constant - S‚P‚D‚F Orbital 1. Prepare a table
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How can I find the molar mass of an element?The molar mass of elements is found by looking at the atomic mass of the element on the periodic table. For example‚ if you want to find the molar mass of carbon‚ you would find the atomic mass of carbon on the periodic table‚ and this is equal to the molar mass in grams per mole. So‚ in our example‚ carbon has a molar mass of 12.01 grams per mole.There are a few exceptions to this rule. In some cases‚ the element is usually found in a different form than
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role. The next discovery was the atomic theory by John Dalton‚ who at first called the atomic weights “the relative weights of ultimate particles”. His atomic theory was the revolutionary system that described the relationship between atoms and elements. Atoms combining into molecules was another discovery found when Gay Lussac saw that the gases produced twice the volume when combining equal volume of different gases. In 1811‚ Amedeo Avogadro realized that the assumptions that gases remain of single
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(9/13) Answers: Questions: Dalton First scientist to propose a model of the atom Atom Smallest unit of matter Element Substance made of multiple identical atoms Dalton’s incorrect theory The
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Edible Atom Summary Sulfur Element number 16 on the periodic table of elements is sulfur. Sulfur is known as a brimstone‚ meaning “burning stone.” This is because it is found in deposits near volcanoes‚ and it burns very easily. It is found naturally around hot springs‚ volcanoes and in meteorites. Sulfur is also a mineral that you will find in all the cells of the human body. Sulfide bonds are the key bonds that allow curly hair to stay curly‚ and if you ever get a “perm” they add sulfide bonds
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≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡ 广州市蓝炬燃烧设备有限公司 GUANGZHOU BURNRAY COMBUSTION EQUIPMENTS CO.‚LTD 地址:广州市番禺区石基镇新桥村新环东路7号 ADD: No.7‚ East Ring Road‚ Xingqiao‚ Shiji‚ Panyu‚ Guangzhou‚ China 电话：86-20-85854520， 84859429 传真：86-20-84859004 TEL: 86-20-85854520， 84859429 FAX: 86-20-84859004 电邮（E-MAIL）：marketing@burnray.com 网址（WEB）：http://www.burnray.com ≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡ INTRODUCTION:
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occurrences such as the existence of elements. Atomos (in ancient Greek) means “that which cannot be further broken down into smaller pieces” This was Democritus idea of atoms Then came along Aristotle the most influential Greek philosopher‚ who didn’t agree with Democritus idea of atoms in fact he dismissed the atomic idea as worthless. He believed that everything on earth consists of four
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was greek word and it means “not able to be divided.” The next scientist who worked with atoms was John Dalton‚ he lived from 1766 to 1844. His main theories were that elements combine in certain proportions based on mass to form compounds‚ each element has a different atom and a different atomic weight‚ all atoms of the same element are perfectly identical‚ and atoms cannot be created or destroyed in chemical reactions. He also had his own
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Isotopes and average atomic mass Isotope: element variations with different atomic mass but same atomic number Isotopic Abundance: the relative amount in which each isotope of an element Calculating: given 2 isotopes of an element [B: 10.01u] [B: 11.01u] 1) Given average atomic mass: 10.81u If given percentages‚ you can find average atomic mass by adding each portion 2) Set variables for unknown values Let x represent % abundance for 10/5 B Let 1-x represent % abundance for 11/5 B Calculate:
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