Dalton's atomic theory includes which of the following ideas?

Atoms of the same element are identical

The average atomic mass of an element as listed on the Periodic Table is equal to _________.

the weighted average of the masses of the isotopes

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Review for Chapter 4 Test Chemistry

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Review for Chapter 4 Test Atomic Structure

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Questions 16

Answers

1
Who experimented with the cathode ray tube?
Democritus
Rutherford
Dalton
Thomson
2
What subatomic particle has a positive charge?
Proton
Neutron
Atom
Electron
3
What is the number of neutrons in Oxygen-16?
16
24
8
6
4
What includes both protons and neutrons?
Element name
Atomic Symbol
Atomic Number
Mass Number
5
Isotopes of the same element have different ________.
# of neutrons
Atomic numbers
# of protons
# of electrons
6
What is the smallest particle of an element that retains the properties of that element?
Electron
Proton
Neutron
Atom
7
What did Rutherford discover?
the nucleus is made of protons and and electrons
Both 2 and 3
atom is mostly empty space
the nucleus is positively charged
8
Dalton's atomic theory includes which of the following ideas?
All atoms are the same size
Atoms of the same element are identical
Atoms of different elements never combine
When an atom loses an proton a chemical change happened
9
All isotopes of the same element have the same _______.
# of neutrons
Mass numbers
Mass numbers and protons
# of protons
10
Who coined the term "atom" in 400 BC?
Thomson
Dalton
Democritus
Rutherford
11
Why is an atom neutral?
Neutrons = electrons
Protons = neutrons
Protons = electrons
Protons, neutrons and electrons are always equal
12
Who did the gold foil test?
Thomson
Rutherford
Democritus
Dalton
13
Which atom has the atomic number of 7?
Nitrogen
Oxygen
Carbon
Boron
14
The average atomic mass of an element as listed on the Periodic Table is equal to _________.
the number of isotopes of the element
the average of the number of protons, neutrons & electrons
the weighted average of the masses of the isotopes
the number of isotopes
15
Which of the following is an isotope for ₁₀²⁰X?
2110 X
2112X
2011X
2012X
16
What accounts for almost all of the mass of an atom?
Protons and electrons
Just electrons
Just protons
Protons and neutrons

Review for Chapter 4 Test Chemistry Flashcards | StudBud

Review for Chapter 4 Test Chemistry

16 termsStudBud Administration53 plays

Review for Chapter 4 Test Atomic Structure

Flashcards16 cardsFPractice quizPHost liveL

Questions 16

Answers

1
Who experimented with the cathode ray tube?
Democritus
Rutherford
Dalton
Thomson
2
What subatomic particle has a positive charge?
Proton
Neutron
Atom
Electron
3
What is the number of neutrons in Oxygen-16?
16
24
8
6
4
What includes both protons and neutrons?
Element name
Atomic Symbol
Atomic Number
Mass Number
5
Isotopes of the same element have different ________.
# of neutrons
Atomic numbers
# of protons
# of electrons
6
What is the smallest particle of an element that retains the properties of that element?
Electron
Proton
Neutron
Atom
7
What did Rutherford discover?
the nucleus is made of protons and and electrons
Both 2 and 3
atom is mostly empty space
the nucleus is positively charged
8
Dalton's atomic theory includes which of the following ideas?
All atoms are the same size
Atoms of the same element are identical
Atoms of different elements never combine
When an atom loses an proton a chemical change happened
9
All isotopes of the same element have the same _______.
# of neutrons
Mass numbers
Mass numbers and protons
# of protons
10
Who coined the term "atom" in 400 BC?
Thomson
Dalton
Democritus
Rutherford
11
Why is an atom neutral?
Neutrons = electrons
Protons = neutrons
Protons = electrons
Protons, neutrons and electrons are always equal
12
Who did the gold foil test?
Thomson
Rutherford
Democritus
Dalton
13
Which atom has the atomic number of 7?
Nitrogen
Oxygen
Carbon
Boron
14
The average atomic mass of an element as listed on the Periodic Table is equal to _________.
the number of isotopes of the element
the average of the number of protons, neutrons & electrons
the weighted average of the masses of the isotopes
the number of isotopes
15
Which of the following is an isotope for ₁₀²⁰X?
2110 X
2112X
2011X
2012X
16
What accounts for almost all of the mass of an atom?
Protons and electrons
Just electrons
Just protons
Protons and neutrons