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MC |
Chemistry |
Standard: 01 |
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Objective:
02. Relate structure, behavior and scale of an atom to the
particles that compose it. |
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ILO: |
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Experiments performed to reveal the structure of atoms led scientists to conclude that an atomÍs
a. positive charge is evenly distributed throughout its volume
b. negative charge is mainly concentrated in its nucleus
c. mass is evenly distributed throughout its volume
d. volume is mainly unoccupied
Correct Answer: d
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MC |
Chemistry |
Standard: 01 |
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Objective: 02. Relate structure, behavior and scale of
an atom to the particles that compose it. |
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ILO: |
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Using the diagram above, answer the following questions:
1. What can be inferred from the diagram about the structure of the atom?
a. the atom is very small
b. the electrons are moving very fast
c. the atom is mainly empty space
d. the electrons are very heavy
e. the nucleus is composed of protons and neutrons
2. What can be
inferred from the diagram about the structure of the atom?
a. the atom is very small
b. the electrons are moving very fast
c. the electrons are very heavy
d. the atom is mainly empty space
e. the nucleus is composed of protons and neutrons
Correct
Answers:
1.
c
2. d
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MC |
Chemistry |
Standard: 01 |
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Objective: 02. Relate structure, behavior and scale of
an atom to the particles that compose it. |
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ILO: |
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According to Dalton's Atomic theory, how are compounds formed?
a. two nuclei attract each other
b. ions are converted into the excited state
c. the joining of two or more atoms
d. through the process of distillation
e. through the release of alpha particles
Correct Answer: c
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MC |
Chemistry |
Standard: 01 |
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Objective: 02. Relate structure, behavior and scale of
an atom to the particles that compose it. |
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ILO: |
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An energy beam was sent from the cathode to the anode. Which of the following did J. J. Thomson study using a cathode ray tube?
a. atoms
b. electrons
c. neutrons
d. nucleus
e. quarks
Correct Answer: b
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MC |
Chemistry |
Standard: 01 |
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Objective: 02. Relate structure, behavior and scale of
an atom to the particles that compose it. |
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ILO: |
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Which of the following ideas is probably the oldest in terms of the development of atomic theory?
a. all matter is made of smaller particles
b. the atom is mostly empty space
c. atoms contain smaller particles
d. atoms are discontinuous
e. all particles of matter are charged
Correct Answer: a
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MC |
Chemistry |
Standard: 01 |
|
Objective:
02. Relate structure, behavior and scale of an atom to the
particles that compose it. |
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ILO: |
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The modern model of the atom shows that electrons are:
a. orbiting the nucleus in fixed paths
b. found in regions called orbitals
c. combined with neutrons in the nucleus
d. located in a solid sphere covering the nucleus
Correct Answer: b
MC |
Chemistry |
Standard: 01 |
|
Objective:
02. Relate structure, behavior and scale of an atom to the
particles that compose it. |
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ILO: |
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An experiment in which alpha particles were used to bombard thin sheets of gold foil led to the conclusion that an atom is composed mostly of
a. empty space and has a small, negatively charged nucleus
b. empty space and has a small, positively charged nucleus
c. a large, dense, positively charged nucleus
d. a large, dense, negatively charged nucleus
Correct Answer: c
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MC |
Chemistry |
Standard: 01 |
|
Objective: 02. Relate structure,
behavior and scale of an atom to the particles that compose it. |
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ILO: |
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Rutherford of England passed a beam of positively charged particles through a thin sheet of gold foil. The particles caused a phosphorescent screen placed behind the gold foil to glow when the particles hit it. Some of the particles were seen to be deflected from the original path. Rutherford concluded:
a. atoms are mostly empty space
b. all atoms are the same size
c. electrons form clouds around d the nucleus
d. protons and neutrons have the same mass
e. the nucleus is less dense than the electron cloud
Correct Answer: a
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MC |
Chemistry |
Standard: 01 |
|
Objective:
02. Relate structure, behavior and scale of an atom to the
particles that compose it. |
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ILO: |
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Why is it improbable that a student would be asked to draw an atom to scale?
a. atom too small
b. nucleus much smaller than atom
c. electrons do not orbit the nucleus
d. nucleus too small to draw
e. electrons move too rapidly
Correct Answer: b
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MC |
Chemistry |
Standard: 01 |
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Objective:
02. Relate structure, behavior and scale of an atom to the
particles that compose it. |
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ILO: |
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As an atom becomes an ion, its mass number
a. decreases
b. increases
c. remains the same
Correct Answer: c
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MC |
Chemistry |
Standard: 01 |
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Objective:
02. Relate structure, behavior and scale of an atom to the
particles that compose it. |
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ILO: |
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Which statement about the mass of an electron is correct?
a. The mass of an electron is equal to the mass of a proton.
b. The mass of an electron is less to the mass of a proton.
c. The mass of an electron is equal to the mass of a neutron.
d. The mass of an electron is less to the mass of a neutron.
Correct Answer: b
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MC |
Chemistry |
Standard: 01 |
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Objective:
02. Relate structure, behavior and scale of an atom to the
particles that compose it. |
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ILO: |
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What are the characteristics of a neutron?
a. It has no charge and no mass.
b. It has no charge and a mass of 1 amu.
c. It has a charge of +1 and no mass.
d. It ahs a charge an +1 and a mass of 1 amu.
Correct Answer: b
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MC |
Chemistry |
Standard: 01 |
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Objective:
02. Relate structure, behavior and scale of an atom to the
particles that compose it. |
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ILO: |
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Which statement best describes electrons?
a. They are positive subatomic particles and are found in the nucleus.
b. They are positive subatomic particles and are found surrounding the nucleus.
c. They are negative subatomic particles and are found in the nucleus.
d. They are negative subatomic particles and are found orbiting the nucleus in energy levels.
Correct Answer: d
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MC |
Chemistry |
Standard: 01 |
|
Objective:
02. Relate structure, behavior and scale of an atom to the
particles that compose it. |
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ILO: |
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Which list of particles is in order of increasing mass?
a. proton ¬ electron ¬ alpha particle
b. proton ¬ alpha particle ¬ electron
c. electron ¬ proton ¬ alpha particle
d. alpha particle ¬ electron ¬ proton
Correct Answer: c
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MC |
Chemistry |
Standard: 01 |
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Objective:
02. Relate structure, behavior and scale of an atom to the
particles that compose it. |
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ILO: |
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The mass of a proton is approximately equal to the total mass of 1,836
a. electrons
b. neutrons
c. helium nuclei
d. alpha particles
Correct Answer: a
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MC |
Chemistry |
Standard: 01 |
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Objective:
02. Relate structure, behavior and scale of an atom to the
particles that compose it. |
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ILO: |
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What is the nuclear charge of an iron atom?
a. +26
b. +30
c. +56
d. +82
Correct Answer: a
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MC |
Chemistry |
Standard: 01 |
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Objective:
02. Relate structure, behavior and scale of an atom to the
particles that compose it. |
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ILO: |
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What is the charge and mass of a proton?
a. charge of +1 and mass of 1 amu
b. charge of +1 and mass of 1/1836 amu
c. charge of Æ1 and mass of 1 amu
d. charge of Æ1 and mass of 1/1836 amu
Correct Answer: a
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MC |
Chemistry |
Standard: 01 |
|
Objective:
02. Relate structure, behavior and scale of an atom to the
particles that compose it. |
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ILO: |
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What is the atomic number of an element that has six protons and eight neutrons?
a. 6
b. 2
c. 8
d. 14
Correct Answer: a
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MC |
Chemistry |
Standard: 01 |
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Objective:
02. Relate structure, behavior and scale of an atom to the
particles that compose it. |
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ILO: |
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Elements in the Periodic Table are arranged according to their
a. atomic number
b. atomic mass
c. relative activity
d. relative size
Correct Answer: a
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MC |
Chemistry |
Standard: 01 |
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Objective:
02. Relate structure, behavior and scale of an atom to the
particles that compose it. |
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ILO: |
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What is the molar mass of Ca3(PO4)2?
a. 196 g
b. 214 g
c. 245 g
d. 310 g
Correct Answer: d
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MC |
Chemistry |
Standard: 01 |
|
Objective:
02. Relate structure, behavior and scale of an atom to the
particles that compose it. |
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ILO: |
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Which quantity of particles is correctly represented by the formula H2SO4?
a. 1.0 mole of ions
b. 1.0 mole of molecules
c. 6.0 x 1023 ions
d. 6.0 x 1023 atoms
Correct Answer: b
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MC |
Chemistry |
Standard: 01 |
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Objective:
02. Relate structure, behavior and scale of an atom to the
particles that compose it. |
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ILO: |
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One mole of O2 has approximately the same mass as one mole of
a. CH4
b. S
c. LiH
d. Cl2
Correct Answer: a
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MC |
Chemistry |
Standard: 01 |
|
Objective:
02. Relate structure, behavior and scale of an atom to the
particles that compose it. |
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ILO: |
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What is total number of neon atoms contained in 20.2 grams of neon gas?
a. 1.01 x 1024
b. 2.02 x 1024
c. 3.01 x 1023
d. 6.02 x 1023
Correct Answer: d
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MC |
Chemistry |
Standard: 01 |
|
Objective:
02. Relate structure, behavior and scale of an atom to the
particles that compose it. |
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ILO: |
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What is the total number of atoms contained in a 1.00-mole sample of helium?
a. 1.00 atom
b. 2.00 atoms
c. 1.20 x 1024 atoms
d. 6.02 x 1023 atoms
Correct Answer: a
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MC |
Chemistry |
Standard: 01 |
|
Objective:
02. Relate structure, behavior and scale of an atom to the
particles that compose it. |
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ILO: |
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The number of moles in a 12.0 gram sample of Cl2 is
a. 12.0/35.5 mole
b. 12.0/71.0 mole
c. 12.0 moles
d. 12.0 x 35.5 moles
Correct Answer: b
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MC |
Chemistry |
Standard: 01 |
|
Objective:
02. Relate structure, behavior and scale of an atom to the
particles that compose it. |
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ILO: |
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The molar mass of NH4Cl is
a. 22.4 g/mole
b. 28.0 g/mole
c. 53.5 g/mole
d. 95.5 g/mole
Correct Answer: c
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MC |
Chemistry |
Standard: 01 |
|
Objective:
02. Relate structure, behavior and scale of an atom to the
particles that compose it. |
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ILO: |
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