Trends in the Periodic table March 24‚ 2013 Four trends that will be covered: Atomic size Ionization Energy Electronegativity Electron Affinity Each of these has a group trend and a period trend A group trend refers to what is happening with the atom as you travel up or down a column of the periodic table. A period trend refers to what is happening with the atom as you move left or right across a row of the periodic table Atomic Size When discussing an atom’s size‚ usually the
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the market everyone experiences the same thought: “Organic or regular?” If one does decide to go organic‚ a few things come to mind: Is organic worth the price? How do I know if it really is organic? Why should I buy the organic five-dollar raspberries‚ while the normal raspberries are only two dollars? These are thoughts that strike every one’s minds while shopping at their local super market. The majority of people would turn away from organic products due to the price. Not only is the price a
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have in their pocket. To be frank‚ organically grown food isn’t nutritionally better than regular foods; in fact‚ some regular foods can be genetically modified to have higher concentrations of nutrients so organic loses in that regard. However‚ one of the main reasons why I advocate for organic food (if you have the means) is that its safer for your long term health and below are my reasons why. Two years ago I wrote a research paper on the environment‚ genetically modified crops and crops
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Chemistry GENERAL CHEMISTRY: Atomic Structure and elementary quantum mechanics: Blackbody radiation‚ Planck’s radiation law‚ photoelectric effect‚ Compton Effect‚ de Broglie’s hypothesis‚ Heisenberg’s uncertainty principle. Postulates of quantum mechanics‚ Schrodinger wave equation and a particle in a box‚ energy levels‚ wave functions and probability densities‚ Schrodinger wave equation for H-atom‚ Separation of variables‚ Radial and angular functions‚ hydrogen like wave functions‚ quantum numbers
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What is Chemistry? Chemistry is the study of matter and energy and the interactions between them. This is also the definition for physics‚ by the way. Chemistry and physics are specializations of physical science. Chemistry tends to focus on the properties of substances and the interactions between different types of matter‚ particularly reactions that involve electrons. Physics tends to focus more on the nuclear part of the atom‚ as well as the subatomic realm. Really‚ they are two sides of the
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Organic VS. Non-organic Food‚ Good or Bad? Unfortunately‚ most organic food is disappearing‚ because people are not taking the time to buy it. People are buying non-organic because the food is cheaper‚ easier to find‚ and full of nutrition. But why is organic food disappearing when it has more nutrition‚ better tasting‚ and ecosystem diversity. What are people really doing? People now at days choose to buy non-organic food because it’s cheaper‚ easier to find‚ and full of nutrition. When coming
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grocery store and not notice a certain new kind of trend. There is a growing urge to have more organic items on shelves. The general belief is that organic items tend to be better for the consumer and the environment when compared to non-organic items. Although many people cant tell the difference‚ there are multiple pros and cons between organic and nonorganic. In terms of consumer health‚ both organic and processed foods have their benefits. The benefits of processed foods are that scientists can
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Chemistry is a big part of your everyday life. You find chemistry in daily life in the foods you eat‚ the air you breathe‚ your soap‚ your emotions and literally every object you can see or touch. Here ’s a look at some everyday chemistry. Elements in the Human Body Steve Allen‚ Getty Images Your body is made up of chemical compounds‚ which are combinations of elements. While you probably know your body is mostly water‚ which is hydrogen and oxygen‚ can you name the other elements that make
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What You Need To Know for the Chemistry Regents Exam The Test The Chemisty Regents Exam is broken down into three sections: Part A: 35 mulitple choice questions from all units covered over the course of the school year. Part B: Approximately 25 questions‚ with a mix of short answer and multiple choice. Questions focus on the Reference Tables‚ graphing‚ and laboratory experiments. Part C: Approximately 15 short answer questions‚ most broken down into smaller parts. This is often an
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invariably between 5-10% for Humanities & Social Science and between 15-20% for Basic Sciences including Mathematics. The existing curriculum of B Tech Chemistry is compatible with the model curriculum of AICTE. Considering the suggestion of our Principal I have modified the contents after thorough consultations and discussions with the Chemistry experts in Engineering colleges. I am forwarding the same to you. The existing curriculum provides only 2 hour for theory and 1 hour lab (with total
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