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Chemistry: A Molecular Approach, 1 st Edition Nivaldo J. Tro

Chemistry: A Molecular Approach, 1 st Edition Nivaldo J. Tro. Chapter 2. Atoms and Elements. Which of the following statements about a carbon atom is correct according to the plum-pudding atom model?. Nothing can penetrate a carbon atom. The carbon atom has a positive charge.

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Chemistry: A Molecular Approach, 1 st Edition Nivaldo J. Tro

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  1. Chemistry: A Molecular Approach, 1st Edition Nivaldo J. Tro Chapter 2 Atoms and Elements

  2. Which of the following statements about a carbon atom is correct according to the plum-pudding atom model? • Nothing can penetrate a carbon atom. • The carbon atom has a positive charge. • The mass of the carbon atom is the same as the mass of all the electrons in the atom. • The carbon atom has a negative charge.

  3. Which of the following statements about a carbon atom is correct according to the plum-pudding atom model? • Nothing can penetrate a carbon atom. • The carbon atom has a positive charge. • The mass of the carbon atom is the same as the mass of all the electrons in the atom. • The carbon atom has a negative charge.

  4. How many neutrons are in 1000 atoms of Cl-37? • 37 • 37,000 • 20 • 20,000 • cannot be determined

  5. How many neutrons are in 1000 atoms of Cl-37? • 37 • 37,000 • 20 • 20,000 • cannot be determined

  6. 68.9 amu, 60.1 % 71.9 amu, 39.9 % The mass spectrum of gallium, Ga, is shown below. The atomic mass of Ga is 69.7 amu. Which of the following statements is correct? • The atomic mass of Ga will be closer to 69 than 71 because there are more atoms that weigh 68.9 amu. • All Ga atoms weigh 69.7 amu. • The atomic mass of Ga is the average of 68.9 and 71.9.

  7. 68.9 amu, 60.1 % 71.9 amu, 39.9 % The mass spectrum of gallium, Ga, is shown below. The atomic mass of Ga is 69.7 amu. Which of the following statements is correct? • The atomic mass of Ga will be closer to 69 than 71 because there are more atoms that weigh 68.9 amu. • All Ga atoms weigh 69.7 amu. • The atomic mass of Ga is the average of 68.9 and 71.9.

  8. Which of the following elements will have properties most similar to Tin, Sn (at. no. 49)? • lead, Pb (82) • gallium, Ga (31) • zinc, Zn (30) • titanium, Ti (22) • arsenic, As (33)

  9. Which of the following elements will have properties most similar to Tin, Sn (49)? • lead, Pb (82) • gallium, Ga (31) • zinc, Zn (30) • titanium, Ti (22) • arsenic, As (33)

  10. Which weighs more, a pea or a marble? • Pea • Marble Tro Chemistry: A Molecular Approach

  11. Which weighs more, a pea or a marble? • Pea • Marble Tro Chemistry: A Molecular Approach

  12. 24.30 40.08 Which has more atoms, 10.0 g Mg or 10.0 g Ca? • Magnesium • Calcium • Both have the same number of atoms. Tro Chemistry: A Molecular Approach

  13. 24.30 40.08 Which has more atoms, 10.0 g Mg or 10.0 g Ca? • Magnesium • Calcium • Both have the same number of atoms. Tro Chemistry: A Molecular Approach

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