Atomic Number and Atomic Mass The Periodic Table of Elements contains the atomic mass and atomic...

     

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Atomic Number and Atomic Mass The Periodic Table of Elements contains the atomic mass and atomic mumber of each element. These numbers indicate the number of protons, neutrons, and electrons in each element's basic structure. ► Each aquare in the Periodic Table represents an element. There are two numbers in each square. The smaller number at the top of the box in the atomic number The number at the bottom of the box is the average of all isotopes of the element. If you "round off this value to the nearest whole number, then that number is the atomie mass. On your "Abbreviated" Periodic Table we have provided the rounded off atomic mass Atomic Number of Protons Atomic Moss = # of Protons + # of Neutrons A single atom has an overall neutral charge because the number of + charges (protona) is equal to the number of charges (electrons) in the atom. Hint: If you know the atomic number, then you automatically know how many protons or electrons are in that atom. This is because the - number of protons is equal to the number of electrons. 1. Using the "Abbreviated" Periodic Table of Elements, put the appropriate symbol by the element's name, and determine the number of protons, electrons, and neutrons. Element Symbol # of Protons #of Electrons of Neutrons Lithium Beryllium Boron Carbon Nitrogen Oxygen Fluorine 2. Use the chart you just completed to answer the following questions. a. What is the atomic number for carbon? b. What is the atomic mass for lithium?. e. What is the atomic number for nitrogen?. d. What is the atomic mass for oxygen?. Atomic Number and Atomic Mass The Periodic Table of Elements contains the atomic mass and atomic mumber of each element. These numbers indicate the number of protons, neutrons, and electrons in each element's basic structure. ► Each aquare in the Periodic Table represents an element. There are two numbers in each square. The smaller number at the top of the box in the atomic number The number at the bottom of the box is the average of all isotopes of the element. If you "round off this value to the nearest whole number, then that number is the atomie mass. On your "Abbreviated" Periodic Table we have provided the rounded off atomic mass Atomic Number of Protons Atomic Moss = # of Protons + # of Neutrons A single atom has an overall neutral charge because the number of + charges (protona) is equal to the number of charges (electrons) in the atom. Hint: If you know the atomic number, then you automatically know how many protons or electrons are in that atom. This is because the - number of protons is equal to the number of electrons. 1. Using the "Abbreviated" Periodic Table of Elements, put the appropriate symbol by the element's name, and determine the number of protons, electrons, and neutrons. Element Symbol # of Protons #of Electrons of Neutrons Lithium Beryllium Boron Carbon Nitrogen Oxygen Fluorine 2. Use the chart you just completed to answer the following questions. a. What is the atomic number for carbon? b. What is the atomic mass for lithium?. e. What is the atomic number for nitrogen?. d. What is the atomic mass for oxygen?.

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Elements Symbol of protons Lithium Li 3 Berylium Be Bor... View the full answer