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
- D Question 14 According to the PHET simulation, the average mass of the Mg atom is ::: closer to Mg-24 equal to Mg-25 closer to Mg-26 none of these answers Ne nou data to aun lark chockad of 7.5 28arrow_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_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_forward
- 5.3) 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_forwardO 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_forwardPERFORMANCE 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_forward
- Name of Element Calculating the number of each particle in an atom: # Protons - Atomic Number #Electrons Protons #Neutrons - Atomic Mass - Atomic Number OR Big #-Small # Use the periodic table to find the numbers of protons, neutrons, and electrons for atoms of the following elements. Boron Sodium Argon Copper Thallium Carbon Calcium Protons, Neutrons, and Electrons Practice Worksheet N Si Ba Mg Element Symbol Pb H B Y Tc Mass Number 11 24 89 98 207 H O Oxygen 15.988 204 12 Atomic Number 5 11 29 81 18 Protons 5 43 7 12 Neutrons 6 35 0 Electrons S 39 56 14 12arrow_forwardHelparrow_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_forwardIsotope #3 . Element Symbol Nuclear Symbol ⚫ Atomic Number . Mass Number Protons: 49 Neutrons: 66 . Electrons Submit Answer Try Another Version 10 item aarrow_forward
- General, Organic, and Biological ChemistryChemistryISBN:9781285853918Author:H. Stephen StokerPublisher:Cengage Learning