Which of the following is not associated with the work of Rutherford? the nucleus of an atom is small compared to the size of the atom the nucleus carries most of the atom's mass because the protons and neutrons reside in there thought that electrons revolved around the nucleus like planets around the sun the atom is mostly emptý space all of these statements are associated with the work of Rutherford when alpha particles hit the gold foil, every other penetration would be deflected and then undeflectedn the alpha particles used were from a radioactive source

Which of the following is not associated with the work of Rutherford? the nucleus of an atom is small compared to the size of the atom the nucleus carries most of the atom's mass because the protons and neutrons reside in there thought that electrons revolved around the nucleus like planets around the sun the atom is mostly emptý space all of these statements are associated with the work of Rutherford when alpha particles hit the gold foil, every other penetration would be deflected and then undeflectedn the alpha particles used were from a radioactive source

Chemistry

9th Edition

ISBN:9781133611097

Author:Steven S. Zumdahl

Publisher:Steven S. Zumdahl

Chapter2: Atoms, Molecules, And Ions

Section: Chapter Questions

Problem 92AE: Which of the following statements is(are) true? For the false statements, correct them. a. All...

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Which of the following statements is/are true? For the false statements, correct them. a. All particles in the nucleus of an atom are charged. b. The atom is best described as a uniform sphere of matter in which electrons are embedded. c. The mass of the nucleus is only a very small fraction of the mass of the entire atom. d. The volume of the nucleus is only a very small fraction of the total volume of the atom. e. The number of neutrons in a neutral atom must equal the number of electrons.
Which of the following is(are) correct? a.40Ca2+ contains 20 protons and 18 electrons. b. Rutherford created the cathode-ray tube and was the founder of the charge-to-mass ratio of an electron. c. An electron is heavier than a proton. d. The nucleus contains protons, neutrons, and electrons.
Criticize each of the following statements: (a) The Rutherford experiment confirmed the presence of electrons in an atom. (b) A period is that segment of the periodic table in which elements are arranged by similar chemical properties. (c) Isotopes have the same mass number. (d) The molecule Be3N2 is triberylium dinitride.
How are protons and neutrons similar? How are they different?
Which of the following statements is(are) true? For the false statements, correct them. a. All particles in the nucleus of an atom are charged. b. The atom is best described as a uniform sphere of matter in which electrons are embedded. c. The mass of the nucleus is only a very small fraction of the mass of the entire atom. d. The volume of the nucleus is only a very small fraction of the total volume of the atom. e. The number of neutrons in a neutral atom must equal the number of electrons.
Give the atomic number (Z) and the mass number (A) for each of the following: a. a carbon atom with 8 neutrons b. an aluminum atom with 14 neutrons c. an argon atom with 20 neutrons d. a copper atom with 36 neutrons
What are the different kinds of particles in the atoms nucleus? Compare their properties with each other and with those of an electron.
Consider Ernest Rutherfords -particle bombardment experiment illustrated in Fig. 2.12. How did the results of this experiment lead Rutherford away from the plum pudding model of the atom to propose the nuclear model of the atom?
The number of protons in an atom determines the identity of the atom. What do the number and arrangement of the electrons in an atom determine? What does the number of neutrons in an atom determine?
For an isolated atom, why do we expect the number of electrons present in the atom to be thesameas the number of protons in the nucleus of the atom?
The element lithium (Li) has an atomic mass of 6.94 amu and has two naturally occurring istopic forms. Based on this information, indicate whether each of the following statements is true or false? a. All Li atoms have a mass of 6.94 amu. b. Some Li atoms have a mass of 6.94 amu. c. Some Li atoms have a mass of less than 6.94 amu. d. Some Li atoms have a mass of greater than 6.94 amu.
Which of the following is( are) correct? a. C40a2+ contains 20 protons and 18 electrons. b. Rutherford created the cathode-ray tube and was the founder of the charge-to-mass ratio of an electron. c. An electron is heavier than a proton. d. The nucleus contains protons, neutrons, and electrons.