ATOMIC STRUCTURE AND THE PERIODIC TABLE Theoretical change with respect to Dalton’s atomic theory 1. In 1803‚ atomic theory was revived by John Dalton a) matter is made up of tiny particles called atoms which cannot be created‚ destroyed or split b) all atoms of one element are identical:- same mass and same chemical properties c) a chemical reaction consists of rearranging atoms from one combination to another. d) When elements combine to form compounds‚ small whole numbers of atoms
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Bohr orbit will be (A) 4/9r2 (B) 4r2 (C) 9/4r2 (D) 9r2 Solution: r = n2h2/ 4π2mZe2 ∴ r2/r3 = 22/32 ∴ r3 = 9/4r2 ∴ (C) Problem: Number of waves made by an electron in one complete revolution in 3rd Bohr orbit is (A) 2 (B) 3 (C) 4 (D) 1 Solution: Circumference of 3rd orbit = 2πr3 According to Bohr’s angular momentum of electron in 3rd orbit
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The Atomic and Nuclear Structure of an Atom The atom has three main components the protons‚ neutrons‚ and electrons. The protons and neutrons make up the nucleus‚ while the electrons are found outside the atom’s nucleus. Each component of an atom has a charge to it. The protons have a positive charge. The electrons have a negative charge‚ and the neutrons have a neutral charge. The atoms also have a charge. For example hydrogen can be negative‚ positive or neutral. These are called
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“One is One and All Alone” by Nicholas Fisk is a science fiction story‚ set in 2045. The main character is Trish‚ an 11-year old girl who is the only child on a spaceship to Trion. Her father is the Executive Officer of the spaceship and her mother is in Trion helping to set up a space station. She will only meet her mother in mid January 2047. After three months‚ she feels lonely and bored as she does not have any real friends to talk to except her private‚ multi-functional diary: the Voice
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One Man‚ One Vote? Joseph Farkas thinks that every vote cast should equal every other vote. He feels that many people are voting without knowing why they are voting for a certain person or why they aren’t voting for another. He says that a vote cast by a person with no or very little knowledge in the election should not count as much as a vote cast by a person who knows a lot about the election. The people who care about who has an important role in the government should have a bigger say in
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One-on-one tutoring or private tutoring is a method of tutoring in which the tutor visits the student’s home to provide assistance in his or her studies. One-on-one tutoring has several advantages over tutoring in groups. Let’s discuss a few of them. Individual Attention One-on-one tutoring provides a lot of scope for individual attention to be paid to a student. In group tutoring‚ the large number of students makes it extremely difficult for a tutor to pay heed to the individual requirements of
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Underlying Power One thousand and one nights‚ one thousand and one moral stories. The story of The Thousand and One Nights is a unique tale that teaches simple morals throughout the many stories within the main story. This tale is about a clever women that saves herself‚ as well as the women in her kingdom‚ from being put to death by the king. She does this by marring the king and telling him bedtime stories every night that lead into the next day. She would purposely not finish the story‚
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essay books 2.30-2.59 BOOKS AND MATERIAL TO BE REFERRED ACCOUNTS : ✓ Module if at all for Sundry Chapters else not required. ✓ Classes Notes ✓ Compilation ✓ Last four Papers ✓ For Standards (Rawat‚ Dolphy D’sa or Vijay Kumar) FM : ✓ Classes Notes ✓ Compilation (approx 80% is covered by Jks) ✓ Last four Papers ✓ For Theory Compilation is enough. ✓ For conceptual understanding of Derivatives and allied chapters Shridhar is
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Retrieved 10 2012‚ from Strategic PPM: http://strategicppm.wordpress.com/2010/11/16/project-failure-channel-tunnel/ Jean Pompee‚ P Roskrow‚ B.‚ & Anderson‚ G. (1994). Channel Tunnel Story. London: Taylor and Francis. Terry Sia‚ A. R. (2001). Managerial structures and approaches. Management works‚ 51-64. Thatcher‚ M. (1987‚ 7 29). Public Statement. London‚ Britian.
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nearby matter. This interaction depends in part on the properties of nuclear radiation‚ such as charge‚ mass‚ and energy. Alpha particles consist of protons and neutrons. Uranium is a radioactive element that naturally occurs as three isotopes. One of its isotopes‚ uranium-238‚ undergoes nuclear decay by emitting positively charged particles. Ernest Rutherford‚ noted for discovering the nucleus‚
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