What did Robert Millikan discover?

proposed the charge of a single electron is 1.602×10−19 C.

negative ion (created by gain of an electron)

What did Bohr discover?

put electrons in specific energy orbits/levels

Which of the below points of Dalton's Atomic Theory was NOT true?

Atoms of given element are identical in phys/chem properties

positive ion (created by loss of electron)

electrically charged atom formed by loss/ gain of electrons

Atomic Number is __________.

the number of protons in the nucleus

Mass Number is __________.

number of protons + number of neutrons

What did Rutherford discover?

positively charged protons in nucleus

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Chapter 3: Atomic Theory & Atomic Structure

26 termsStudBud Administration206 plays

This is a Quiz about the History of the Atom that starts with Democritus and ends with James Chadwick. The Quiz also includes information about differentiating ions, anions, and cations. Hope this is helpful to anyone who needs it!!

Flashcards26 cardsFPractice quizPHost liveL

Questions 26

Answers

1
What did Robert Millikan discover?
put electrons in specific energy orbits/levels
positively charged protons in nucleus
proposed the charge of a single electron is 1.602×10−19 C.
the neutron
2
What is an Anion?
positive ion (created by gain of an electron)
negative ion (created by gain of an electron)
positive ion (created by loss of an electron)
negative ion (created by loss of an electron)
3
Who's model of the ATOM is this?
Chadwick
Thomson
Dalton
Bohr
4
Who first thought of the concept of an atom?
Aristotle
Democritus
5
What did Bohr discover?
the neutron
put electrons in specific energy orbits/levels
positively charged protons in nucleus
the electron
6
_________ found that cathode ray has particles with mass and negative charge (electrons).
Chadwick
Bohr
JJ Thomson
Millikan
7
What was Robert Millikan's experiment?
Used Cathode Ray Tube
Gold Foil Experiment
Oil Drop Experiement
8
What did J.J. Thomson discover?
the neutron
put electrons in specific energy orbits/levels
the electron
positively charged protons in nucleus
9
This is the _________________.
Law of Definite Proportions
Law of Multiple Proportions
Law of Conservation of Mass
10
What did Chadwick discover?
the neutron
the proton
the nucleus
the electron
11
Which of the below points of Dalton's Atomic Theory was NOT true?
Atoms of given element are identical in phys/chem properties
Atoms combine in whole-number ratios to form compounds
Atoms are combined, separated, or rearranged (chem reaction)
Atoms of different elements differ in phys/chem properties.
12
Which scientist does this MODEL belong to?
Bohr
Chadwick
Rutherford
Thomson
13
Who's Atomic Theory had five points?
Dalton
Chadwick
Thomson
Bohr
14
This is the _________________.
Law of Definite Proportions
Law of Conservation of Mass
Law of Multiple Proportions
15
What is a Cation?
positive ion (created by loss of electron)
negative ion (created by loss of an electron)
negative ion (created by gain of an electron)
positive ion (created by gain of electron)
16
What is an Ion?
negative ion (created by gain of an electron)
positive ion (created by loss of electron)
electrically charged atom formed by loss/ gain of electrons
17
Millikan determined the _________ of the electron.
mass
charge
mass AND charge
18
Who's model of the ATOM is this?
Bohr
Chadwick
JJ Thomson
Dalton
19
What was Rutherford's experiment?
Used Line Emission Spectra
Oil Drop Experiment
Gold Foil Experiment
20
TRUE or FALSE: All matter is made up of tiny particles called atoms.
True
False; made up of electrons
21
Atomic Number is __________.
number of protons + number of neutrons
the number of protons in the nucleus
22
This is the ______________.
Law of Multiple Proportions
Law of Conservation of Mass
Law of Definite Proportions
23
Who's model of the ATOM is this?
Bohr
Rutherford
Chadwick
Dalton
24
Mass Number is __________.
number of protons + number of neutrons
the number of protons in the nucleus
25
Can atoms be divided?
YES, they can be divided.
NO, they can't be divided.
26
What did Rutherford discover?
positively charged protons in nucleus
puts electrons in specific energy orbits/levels
proposed the charge of a single electron is 1.602×10−19 C.
negatively charged neutrons in nucleus

Chapter 3: Atomic Theory & Atomic Structure Flashcards | StudBud

Chapter 3: Atomic Theory & Atomic Structure

26 termsStudBud Administration206 plays

Flashcards26 cardsFPractice quizPHost liveL

Questions 26

Answers

1
What did Robert Millikan discover?
put electrons in specific energy orbits/levels
positively charged protons in nucleus
proposed the charge of a single electron is 1.602×10−19 C.
the neutron
2
What is an Anion?
positive ion (created by gain of an electron)
negative ion (created by gain of an electron)
positive ion (created by loss of an electron)
negative ion (created by loss of an electron)
3
Who's model of the ATOM is this?
Chadwick
Thomson
Dalton
Bohr
4
Who first thought of the concept of an atom?
Aristotle
Democritus
5
What did Bohr discover?
the neutron
put electrons in specific energy orbits/levels
positively charged protons in nucleus
the electron
6
_________ found that cathode ray has particles with mass and negative charge (electrons).
Chadwick
Bohr
JJ Thomson
Millikan
7
What was Robert Millikan's experiment?
Used Cathode Ray Tube
Gold Foil Experiment
Oil Drop Experiement
8
What did J.J. Thomson discover?
the neutron
put electrons in specific energy orbits/levels
the electron
positively charged protons in nucleus
9
This is the _________________.
Law of Definite Proportions
Law of Multiple Proportions
Law of Conservation of Mass
10
What did Chadwick discover?
the neutron
the proton
the nucleus
the electron
11
Which of the below points of Dalton's Atomic Theory was NOT true?
Atoms of given element are identical in phys/chem properties
Atoms combine in whole-number ratios to form compounds
Atoms are combined, separated, or rearranged (chem reaction)
Atoms of different elements differ in phys/chem properties.
12
Which scientist does this MODEL belong to?
Bohr
Chadwick
Rutherford
Thomson
13
Who's Atomic Theory had five points?
Dalton
Chadwick
Thomson
Bohr
14
This is the _________________.
Law of Definite Proportions
Law of Conservation of Mass
Law of Multiple Proportions
15
What is a Cation?
positive ion (created by loss of electron)
negative ion (created by loss of an electron)
negative ion (created by gain of an electron)
positive ion (created by gain of electron)
16
What is an Ion?
negative ion (created by gain of an electron)
positive ion (created by loss of electron)
electrically charged atom formed by loss/ gain of electrons
17
Millikan determined the _________ of the electron.
mass
charge
mass AND charge
18
Who's model of the ATOM is this?
Bohr
Chadwick
JJ Thomson
Dalton
19
What was Rutherford's experiment?
Used Line Emission Spectra
Oil Drop Experiment
Gold Foil Experiment
20
TRUE or FALSE: All matter is made up of tiny particles called atoms.
True
False; made up of electrons
21
Atomic Number is __________.
number of protons + number of neutrons
the number of protons in the nucleus
22
This is the ______________.
Law of Multiple Proportions
Law of Conservation of Mass
Law of Definite Proportions
23
Who's model of the ATOM is this?
Bohr
Rutherford
Chadwick
Dalton
24
Mass Number is __________.
number of protons + number of neutrons
the number of protons in the nucleus
25
Can atoms be divided?
YES, they can be divided.
NO, they can't be divided.
26
What did Rutherford discover?
positively charged protons in nucleus
puts electrons in specific energy orbits/levels
proposed the charge of a single electron is 1.602×10−19 C.
negatively charged neutrons in nucleus