Question

1. which one of the following is not part of daltons atomic theory?

a) matter is composed of atoms.
b) atoms of different elements have different properties.
c) atoms of the same element have the same properties.
d) atoms change into other atoms in chemical reactions.

1. according to john dalton, all atoms of the same element are

a) the same.
b) different.
c) able to form compounds.
d) able to show different weight relationships.

1. identify the incorrect statement regarding daltons atomic theory.

a) all matter is composed of atoms.
b) all atoms of a given element are identical.
c) a given compound always has the same relative numbers and types of atoms.
d) all matter is composed of protons, electrons, and neutrons.

1. the fundamental particle of a chemical element according to daltons theory is the

a) compound.
b) atom.
c) electron.
d) molecule.

1. which of the following was not a basic assumption of daltons atomic theory?

a) all elements are made up of atoms.
b) atoms of different elements differ in their weights.
c) atoms are made up of protons, electrons, neutrons.
d) all molecules of a compound have the same ratio of combining atoms.

1. which of these is not a subatomic particle?

a) electron
b) bonbon
c) neutron
d) proton

1. in the periodic table, the number 30.9738 below the symbol p (phosphorus) represents

a) the number of neutrons in one atom of phosphorus.
b) the number of energy levels in one phosphorus atom.
c) the number of protons in one atom of phosphorus.
d) the mass of one mole of phosphorus atoms.
e) the mass of an individual atom of phosphorus.

1. in the periodic table, the number 67 above the symbol ho (holmium) represents

a) the relative mass of one atom of holmium.
b) the mass of one mole of holmium atoms.
c) the number of protons in one atom of holmium.
d) the number of neutrons in one atom of holmium.

Explanation:

• Question 6: Dalton's atomic theory states that atoms are indivisible in chemical reactions and do not change into other atoms. So, option d is not part of Dalton's atomic theory.
• Question 7: According to Dalton, all atoms of the same element are the same. So, option a is correct.
• Question 8: Dalton's atomic theory does not mention protons, electrons, and neutrons. So, option d is incorrect.
• Question 9: According to Dalton's Theory, the fundamental particle of a chemical element is the atom. So, option b is correct.
• Question 10: Dalton's atomic theory does not mention that atoms are made up of protons, electrons, and neutrons. So, option c is not a basic assumption.
• Question 11: Bonbon is not a subatomic particle. Subatomic particles include electron, neutron, and proton. So, option b is correct.
• Question 12: In the periodic table, the number below the symbol (e.g., 30.9738 for P) represents the mass of one mole of atoms (molar mass). So, option d is correct.
• Question 13: In the periodic table, the number above the symbol (e.g., 67 for Ho) represents the atomic number, which is the number of protons in one atom. So, option c is correct.

Answer:

1. d) Atoms change into other atoms in chemical reactions.
2. a) the same.
3. d) All matter is composed of protons, electrons, and neutrons.
4. b) atom.
5. c) Atoms are made up of protons, electrons, neutrons.
6. b) bonbon
7. d) the mass of one mole of phosphorus atoms.
8. c) the number of protons in one atom of holmium.