Topic 12 ATOMIC STRUCTURE: Electronic configuration 12. 1. Ionization energy If an electron obtains enough energy it jumps beyond the highest energy level and becomes a free electron: the atom itself becomes a positive ion. This electron transition is represented as follows: n = 1 to n = (. Notation n = ( refers to the “world” outside the atom – beyond the control of the nucleus; any electron outside an atom has no potential energy (energy = 0). With hydrogen the ionization energy can be
Premium Electron configuration Atom Electron
&ATOMIC NUMBER AND MASS NUMBERS After reading this section you will be able to do the following: * Define and determine the atomic number of an atom. * Define and determine the mass number of an atom. What is an atom’s atomic number? The number of protons in the nucleus of an atom determines an element’s atomic number. In other words‚ each element has a unique number that identifies how many protons are in one atom of that element. For example‚ all hydrogen atoms‚ and only hydrogen atoms
Premium Isotope Neutron Radioactive decay
JC1 H2 Chemistry Atomic Structure Tutorial 1. How many protons‚ neutrons and electrons are there in 3+ ion? 2. Write down the electronic configuration of (a) Si (atomic no. 14) (b) Sc (atomic no. 21) (c) Co (atomic no. 27) 3. Which of the following ions contains an unpaired electron? A calcium ion B copper(II) ion C potassium ion D titanium(IV) ion 4. Some isotopes are unstable and decompose naturally. In one type of decomposition‚ a neutron in the nucleus decomposes to form a proton‚ which is
Free Atom Chemical element Quantum mechanics
The Great Invention Of The Atomic Bomb Darion Mealing English 12 Mr. Owens Block 4 02/06/14 If you were asked what the greatest invention to help or impact mankind‚ what would you say? Most people would begin to talk about automobile‚ engines‚ and other machinery. Weapons are also a major reason we are what we are today. A special weapon stands out as the big advantage of why we won the battles in World War II‚ It’s called the Atomic Bomb. It is a great invention
Premium Invention Innovation Nuclear weapon
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
Free Atom Electron Neutron
Short Notes On Atomic Structure * Atom is the smallest particle of an element- All 117 elements has atoms * Bohr model: - Planetary model (see Figure 1 below) 1. Sun (proton & neutron= nucleus) 2. Planets (electrons) 3. Orbit (shell) Figure 1: Bohr model * Each type of atoms has a certain number of electrons and protons that differentiate it from the atoms of other elements Example: 1 proton 1 electron= Hydrogen (1 type elements) 2
Premium Atom
Narrative 2-Complete in Present tense Good morning‚ my name is Hope. Today‚ I wake up at 7am. I shower and I brush my teeth. I brush my hair and put on make-up. Then‚ I go to school. After school‚ I babysit my two little brothers‚ William and Rodrigo. They play board games‚ checkers‚ or videogames. My mom gets home at 6pm. She cooks dinner and reads a magazine. My dad gets home at 8pm. We eat dinner at 8:30pm. My dad reads us a story. We go to bed at 10pm. After that‚ he watches TV
Premium Embalming Death Federal Bureau of Investigation
Everybody knows about the atomic bomb‚ but not everybody is aware of the story behind it. The atomic bomb is arguably one of the most iconic turning points in history. There are many takes on whether this invention was beneficial or unnecessary. At first‚ the bomb was built out of spite to beat the Germans; later on‚ it was used against Japan after Pearl Harbor. This complex weapon needs many people to participate in its creation. The reason the project started was to surpass the Germans in creating
Premium
matter and all life. The history of the study of the atomic nature of matter is the thinking process that goes on in the scientist’s heads. Further progress in the understanding of atoms did not occur until very famous scientist created the atomic theory. Here are some scientists who changed the way we learn about the atom‚ and the atomic nature of all life. Ernest Rutherford. Ernest Rutherford was another scientist that changed the atomic model. Rutherford was studding physics up until his
Premium Atom Quantum mechanics Electron
Atomic Theory-Study Sheet-Updated 9/15 *Reminder-Review Notes and this Question/Answer sheet DAILY to prepare for your next test. Goal: Grade of “A”. *Flash Review….Test October 7th How to use this study guide-Print the page and fold between questions and answers OR cover the answer column. Ask yourself the questions and see if you can correctly answer. Use it until you can answer ALL questions quickly with 100% accuracy. Do a little every day‚ and you will be ready for the next test
Premium Atom Chemical element Uranium