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Which statements are inconsistent with Rutherford's nuclear theory that was originally stated? a) Helium atoms have...
Which of these statements is true? The number of electrons outside the nucleus is the same...
Which of these statements is true? The number of electrons outside the nucleus is the same as the number of neutrons in the nucleus. The mass number of an atom is the number of protons plus the number of neutrons. The atomic number of an atom is the number of valence electrons outside the nucleus. In an ion, the number of electrons must be equal to the number of protons.
1. What do atoms contain? A) negatively charged neutrons and positively charged nucleus B) negatively charged...
1. What do atoms contain? A) negatively charged neutrons and positively charged nucleus B) negatively charged electrons and neutral nucleus C) negatively charged electrons and positively charged nucleus D) positively charged electrons and negatively charged nucleus 2. What particles make up the nucleus? A) protons B) neutrons C) protons and electrons D) protons and neutrons E) electrons and neutrons 3. Atoms contain A) neutrons B) electrons C) electrons and neutrons D) electrons, protons, and neutrons E) protons D 4. Which...
Atoms and Isotopes 1 Activity: Atoms and Isotopes Why? Atoms and isotopes are identified by the...
Atoms and Isotopes 1 Activity: Atoms and Isotopes Why? Atoms and isotopes are identified by the numbers of protons, electrons, and neutrons that they contain The number of protons, electrons, and neutrons in atoms determines the chemical properties of the elements .A knowledge of the number of protons and electrons in an atom will help you understand how atoms combine to form molecules Identify the composition of atoms in terms of protons, neutrons, and electrons Use atomic symbols to represent...
B) Theories must be testable; hypotheses do not need to be testable. CHypotheses are educated guesses,...
B) Theories must be testable; hypotheses do not need to be testable. CHypotheses are educated guesses, and theories are tentative explanations. D) Hypotheses are derived from experimentation, whereas theories are derived from observation. 12) A) Water is an example of an element. B Nitrogen C) Glucose D) Salt 13) What are the four most common elements found in living organisms? A) nitrogen, oxygen, phosphorus, and carbon carbon, oxygen, nitrogen, and hydrogen C) carbon, oxygen, potassium, and calcium D) oxygen, calcium,...
otected View Enable Editing C. Those in the same columns D. Those on opposite sides 14....
otected View Enable Editing C. Those in the same columns D. Those on opposite sides 14. The nucleus of an atom contains A. electrons and protons only. B. protons only. C. electrons, protons, and neutrons. D. protons and neutrons only. 15. What distinguishes the atoms of one element from another? A. The number of neutrons B. The number of protons plus neutrons C. The number of protons D. The number of neutrons plus electrons Answer all the questions (70 points)...
(12. Which of these is a chemical property ? a. Helium is very nonreactive b. Sodium...
(12. Which of these is a chemical property ? a. Helium is very nonreactive b. Sodium is a soft shiny metal. c. Water has a high specific heat. d. Glycerol is a viscous liquid. .e. Ice melts at 0°C. 13. Which of these is an element? water-compound b. iron ore wood compound d. silver element e. brass 14. Water is an example of a. a homogeneous mixture b. a heterogeneous mixture c. a compound 2 or more atoms form chemical...
Isotope 2. Which of the following statements about isotopes is/are correct? (a) "Br and 8'Br have...
Isotope 2. Which of the following statements about isotopes is/are correct? (a) "Br and 8'Br have the same number of neutrons. (b) 'N and "SN have the same number of protons. (c) "O has the same number of neutrons and protons. (d) Answers (a) and (b) (e) Answers (a), (b) and (c) 3. How many nitrogen atoms are present in 0.250 mol of hydrazine (N2H4)? (a) 1.51 x 1022 nitrogen atoms (b) 3.01 x 1022 nitrogen atoms (c) 7.53 x...
42 Nuclear Physics 42.1 Nuclear Structure 1. Consider the atoms 10, 180, 185, 18Ne, and 20Ne....
42 Nuclear Physics 42.1 Nuclear Structure 1. Consider the atoms 10, 180, 185, 18Ne, and 20Ne. Some of the questions about these atoms may more than one answer. Give all answers that apply. a. Which atoms are isotopes? b. Which atoms are isobars? c. Which atoms have the same chemical properties? d. Which atoms have the same number of neutrons? e. Which atoms have the same number of valence electrons? f. Rank in order, from largest to smallest, the radii...
HELP PLEASE ITS ON ATOMIC MASS AND NUCLEAR PROCESSES thanks ˝ Astronomy homework - due Friday,...
HELP PLEASE ITS ON ATOMIC MASS AND NUCLEAR PROCESSES
thanks
˝
Astronomy homework - due Friday, Express all your answer in atomic mass units, u (See below.) There is another fusion process for converting hydrogen into helium in stars that have a mass of more than 1.5 M , where 1 M represents the mass of the sun. I've indicated some of the steps in this process below but left out one of the by-products of each reaction. Please determine...
Question 11 1 pts Which of the following experimental results suggested that the nuclear model on...
Question 11 1 pts Which of the following experimental results suggested that the nuclear model on the right is a better presentation of the atomic structure over the raisin-pudding model on the left? Thomson proposed that small, negative electrons are embedded in a sphere of positive charge. Alpha Sphere of positive charge Atoms of the same element can have different masses, due to the difference in the numbers of neutrons in the nudeus. Millikan's oil experiment determined that the fundamental...
Which of these statements is true? The number of electrons outside the nucleus is the same as the number of neutrons in the nucleus. The mass number of an atom is the number of protons plus the number of neutrons. The atomic number of an atom is the number of valence electrons outside the nucleus. In an ion, the number of electrons must be equal to the number of protons.
1. What do atoms contain? A) negatively charged neutrons and positively charged nucleus B) negatively charged electrons and neutral nucleus C) negatively charged electrons and positively charged nucleus D) positively charged electrons and negatively charged nucleus 2. What particles make up the nucleus? A) protons B) neutrons C) protons and electrons D) protons and neutrons E) electrons and neutrons 3. Atoms contain A) neutrons B) electrons C) electrons and neutrons D) electrons, protons, and neutrons E) protons D 4. Which...
Atoms and Isotopes 1 Activity: Atoms and Isotopes Why? Atoms and isotopes are identified by the numbers of protons, electrons, and neutrons that they contain The number of protons, electrons, and neutrons in atoms determines the chemical properties of the elements .A knowledge of the number of protons and electrons in an atom will help you understand how atoms combine to form molecules Identify the composition of atoms in terms of protons, neutrons, and electrons Use atomic symbols to represent...
B) Theories must be testable; hypotheses do not need to be testable. CHypotheses are educated guesses, and theories are tentative explanations. D) Hypotheses are derived from experimentation, whereas theories are derived from observation. 12) A) Water is an example of an element. B Nitrogen C) Glucose D) Salt 13) What are the four most common elements found in living organisms? A) nitrogen, oxygen, phosphorus, and carbon carbon, oxygen, nitrogen, and hydrogen C) carbon, oxygen, potassium, and calcium D) oxygen, calcium,...
otected View Enable Editing C. Those in the same columns D. Those on opposite sides 14. The nucleus of an atom contains A. electrons and protons only. B. protons only. C. electrons, protons, and neutrons. D. protons and neutrons only. 15. What distinguishes the atoms of one element from another? A. The number of neutrons B. The number of protons plus neutrons C. The number of protons D. The number of neutrons plus electrons Answer all the questions (70 points)...
(12. Which of these is a chemical property ? a. Helium is very nonreactive b. Sodium is a soft shiny metal. c. Water has a high specific heat. d. Glycerol is a viscous liquid. .e. Ice melts at 0°C. 13. Which of these is an element? water-compound b. iron ore wood compound d. silver element e. brass 14. Water is an example of a. a homogeneous mixture b. a heterogeneous mixture c. a compound 2 or more atoms form chemical...
Isotope 2. Which of the following statements about isotopes is/are correct? (a) "Br and 8'Br have the same number of neutrons. (b) 'N and "SN have the same number of protons. (c) "O has the same number of neutrons and protons. (d) Answers (a) and (b) (e) Answers (a), (b) and (c) 3. How many nitrogen atoms are present in 0.250 mol of hydrazine (N2H4)? (a) 1.51 x 1022 nitrogen atoms (b) 3.01 x 1022 nitrogen atoms (c) 7.53 x...
42 Nuclear Physics 42.1 Nuclear Structure 1. Consider the atoms 10, 180, 185, 18Ne, and 20Ne. Some of the questions about these atoms may more than one answer. Give all answers that apply. a. Which atoms are isotopes? b. Which atoms are isobars? c. Which atoms have the same chemical properties? d. Which atoms have the same number of neutrons? e. Which atoms have the same number of valence electrons? f. Rank in order, from largest to smallest, the radii...
HELP PLEASE ITS ON ATOMIC MASS AND NUCLEAR PROCESSES
thanks
˝
Astronomy homework - due Friday, Express all your answer in atomic mass units, u (See below.) There is another fusion process for converting hydrogen into helium in stars that have a mass of more than 1.5 M , where 1 M represents the mass of the sun. I've indicated some of the steps in this process below but left out one of the by-products of each reaction. Please determine...
Question 11 1 pts Which of the following experimental results suggested that the nuclear model on the right is a better presentation of the atomic structure over the raisin-pudding model on the left? Thomson proposed that small, negative electrons are embedded in a sphere of positive charge. Alpha Sphere of positive charge Atoms of the same element can have different masses, due to the difference in the numbers of neutrons in the nudeus. Millikan's oil experiment determined that the fundamental...
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