Concept explainers
Interpretation:
The option in which the
Concept Introduction:
Every element has a unique name and in most cases it was selected by the person who discovered it. For an element, abbreviation known as chemical symbol also exist for all elements name. Chemical symbol is simply one- or two-letter designation given for an element that is derived from the name of element. Chemical symbols occupy less space compared to chemical names.
In a chemical symbol, the first letter is always capitalized while the second letter is present in lower case. Two-letter chemical symbols are often the first two-letters of the chemical name of an element. Some elements symbol are derived from the Latin name of the element.
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General, Organic, and Biological Chemistry
- O ATOMS, IONS AND MOLECULES Identifying the parts of an atom Complete the table below, using the diagram of an atom shown at right. Properties of subatomic particles approximate charge (in multiples of e) location symbol name mass on diagram (amu) electron [(choose one) - (choose one) - proton (choose one) - (choose one) v -1 0.0005 Explanation Check IIarrow_forwardLondyn Takib Protons, Neutrons, and Electrons Practice Worksheet Use the periodic table to find the numbers of protons, neutrons, and electrons for atoms of the following elements. Name of Element Boron Sodium Gallium Copper Ytterbium Thallium Carbon Calcium Argon Element Symbol Tc Pb Ac B Y Mo Fm No H N Ba Si Mg Mass Number 11 24 89 98 207 227 204 259 12 Atomic Number 5 11 29 81 100 18 Protons 5 31 43 89 7 2 12 106 Neutrons 6 37 35 103 54 157 March 5 159 Electrons 5 39 70 56 2 14 12arrow_forward5.3) The isotope lithium-7 has a mass of 7.02 amu and a percent natural abundance of 92.6 %. The isotope lithium-6 has a percent natural abundance of 7.42 %. What is the mass of lithium-6? Answer: Submit Answer Try Another Version 1 item attempt remaining Visitedarrow_forward
- PERFORMANCE TASK Complete the table. Element Boron (B) Copper (Cu) Iron (Fe) Sulfur (S) Tin (Sn) Nitrogen (N) Neon (Ne) Mercury (Hg) Potassium (K) Bromine (Br) Atomic Number 5 29 26 16 50 7 10 80 19 35 Mass Number 11 64 56 32 119 14 20 201 39 80 Number of Protons (p") Number of Electrons (e) Number of Neutrons (nº)arrow_forwardCourse Home Katoms, ions and naming molecular and ionic substances Sample Exercise 2.3 Practice Exercise 1 with feedback Part A - Writing Symbols for Atoms Which of the following is an incorrect representation for a neutral atom: O {Li o Ag O Cu Submit Request Answer Provide Feedback hparrow_forwardWrite the chemical symbols for three different atoms or atomic cations with 21 electrons. Explanation Check 02022 McGraw Hill LL DELLarrow_forward
- Answer the following if True or False. (1-10) 1. Radioactivity emanates from stable isotopes of certain elements. * True False 2. Electrons are neutral sub-atomic particles of the atom. * True False 3. LASER is one kind of background radiation. * True False 4. Strong nuclear force holds atoms together. * True False 5. Tremendous amount of energy is released during fission reaction. * True False 6. Radioactive decay is a spontaneous process. * True False 7. X-ray, MRI, CT scan and ultrasound are medical imaging procedures that use radiation beams. * True False 8. In the electromagnetic spectrum, the lower the frequency the higher is the energy of radiation. * True False 9. Radiation can be in the form of particle and electromagnetic waves. * True False 10. Gamma rays can be stopped by a piece of paper. * True Falsearrow_forwardunit 3 practice problem Dalton Atomic Theory 1 2 3 4 5arrow_forwardLearning Goal: Atoms with the same number of protons but different numbers of neutrons are called isotopes. Some elements only have one naturally occurring isotope, while others such as carbon have two or more. In a naturally occurring sample, isotopes of each element are present in a certain percentage amount called the percent natural abundance. The mass number of an isotope is the sum of the number of protons and the number of neutrons for a particular isotope and is symbolized by A. A = number of protons + number of neutrons There are several different types of isotope notation. For example, a carbon isotope that has an atomic number of 6 and a mass number of 13 could be symbolized in any of the following ways: 13C, carbon-13, or C-13. b lock Part A Enter the appropriate symbol for an isotope of potassium-39 corresponding to the isotope notation X. Express your answer as a chemical symbol using isotope notation. ►View Avallable Hint(s) esc control Submit Part B Complete previous…arrow_forward
- ll AT&T ? 11:03 AM Tuesday (2/9) Warmup - Period 5 - lons Lew... Hi Jaylin, when you submit this form, the owner will be able to see your name and email address. 1 What is wrong with the ion pictured? [ċa]* 2+ It has too many electrons for its charge It has too few electrons for its charge It is missing a charge Nothing is wrongarrow_forward6 If the underlined word is false, change it to the correct answerarrow_forwardLearning Goal: Atoms with the same number of protons but different numbers of neutrons are called isotopes. Some elements only have one naturally occurring isotope, while others such as carbon have two or more. In a naturally occurring sample isotopes of each element are present in a certain percentage amount called the percent natural abundance. The mass number of an isotope is the sum of the number of protons and the number of neutrons for a particular isotope and is symbolized by A. A = number of protons + number of neutrons There are several different types of isotope notation. For example, a carbon isotope that has an atomic number of 6 and a mass number of 13 could be symbolized in any of the following ways: C, carbon-13, or C-13. tab Part A Enter the appropriate symbol for an isotope of potassium-39 corresponding to the isotope notation 4X. Express your answer as a chemical symbol using Isotope notation. View Available Hint(s) esc 7 caps lock Part B Complete previous part(s)…arrow_forward
- General, Organic, and Biological ChemistryChemistryISBN:9781285853918Author:H. Stephen StokerPublisher:Cengage LearningChemistry: The Molecular ScienceChemistryISBN:9781285199047Author:John W. Moore, Conrad L. StanitskiPublisher:Cengage Learning