Chapter 4 review atomic structure
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Chapter 4 Review “Atomic Structure”. Chapter 4 Review. All atoms of the same element have the same _____. Know Dalton’s Atomic Theory. An element has an atomic number of 76. What is the number of protons and electrons in a neutral atom of this element?

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Chapter 4 Review “Atomic Structure”

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Chapter 4 review atomic structure

Chapter 4 Review“Atomic Structure”


Chapter 4 review

Chapter 4 Review

  • All atoms of the same element have the same _____.

  • Know Dalton’s Atomic Theory.

  • An element has an atomic number of 76. What is the number of protons and electrons in a neutral atom of this element?

  • How is the number of neutrons in the nucleus of an atom calculated?


Chapter 4 review1

Chapter 4 Review

  • All atoms are neutral, with the number of protons equaling the ___.

  • Isotopes of the same element have different _____.

  • Using the periodic table, determine the number of neutrons in 16O.

  • What does the number 84 represent in the name krypton-84?


Chapter 4 review2

Chapter 4 Review

  • What is the correct complete symbol for an atom of tritium?

  • Know who discovered the neutron, and in what year.

  • Dalton said that atoms were indivisible and atoms of the same element were identical. Have any changes been made to this?


Chapter 4 review3

Chapter 4 Review

  • The mass number of an element is equal to _____.

  • The sum of the protons and neutrons in an atom equals the __.

  • What is the purpose of comparing the number of atoms of copper in a coin the size of a penny with the number of people on the earth?


Chapter 4 review4

Chapter 4 Review

  • The atomic number of an element is the total number of ____.

  • How do the isotopes of hydrogen-1 and hydrogen-2 differ?

  • What hypothesis led to the discovery of the proton?

  • The element Indium has __ protons and ___ electrons.


Chapter 4 review5

Chapter 4 Review

  • Why did J. J. Thomson reason that electrons must be a part of the atoms of all elements?

  • Isotopes of the same element have different ____.

  • Know characteristics regarding the nucleus of an atom.

  • Are these the same element? 38? and 39?


Chapter 4 review6

Chapter 4 Review

  • Describe the model of the atom as a result of Rutherford’s discovery of the nucleus.

  • The smallest particle of an element that retains the properties of that element is a(n) ____.

  • Know the complete symbol for an element, and what it means: X

20

10


Chapter 4 review7

Chapter 4 Review

  • What is the relative mass of an electron?

  • The particles that are found in the nucleus of an atom are ____.

  • Know the ideas from Democritus.

  • Who conducted experiments to determine the quantity of charge carried by an electron?


Chapter 4 review8

Chapter 4 Review

  • How many protons, electrons, and neutrons does an atom with atomic number 50 and mass number 125 contain?

  • Who was the man who lived from 460 B.C. – 370 B.C., and was among the first to suggest the idea of atoms?


Chapter 4 review9

Chapter 4 Review

  • Know the characteristics of subatomic particles.

  • A fictitious element “X” has 10.0 % of the isotope with mass 55 amu, 20.0 % of the isotope with mass 56 amu, and 70.0 % of the isotope with mass 57 amu. Estimate the atomic mass of element X.


Chapter 4 review10

Chapter 4 Review

  • Element “Z” has two isotopes: one has mass number of 19.0 amu is 55.0 % abundant, and the isotope with mass number 21.0 amu is 45.0 % abundant. What is the average atomic mass for element Z?

  • How many protons are present in an atom of Beryllium-9?


Chapter 4 review11

Chapter 4 Review

  • Calculate the number of neutrons in Lead-210.

  • Determine the number of electrons in an atom of Iridium.

  • About how many more times massive is a proton than electron?

  • How many neutrons are present in an isotope of uranium-235?


Chapter 4 review12

Chapter 4 Review

  • What is the atomic number for an element with 41 neutrons and a mass number of 80?

  • Use the periodic table to determine the number of protons in barium.

  • How many protons are present in the nuclei of the three known isotopes of hydrogen?


Chapter 4 review13

Chapter 4 Review

  • What is the mass number for an oxygen atom that has 10 neutrons in its nucleus?

  • How many electrons are in an atom of gold?

  • What is the total number of subatomic particles in the nucleus of an atom of bismuth-209?


Chapter 4 review14

Chapter 4 Review

  • Use the periodic table to determine the number of electrons in a neutral atom of lithium.

End of Chapter 4 Review


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