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The Atom Flashcards | StudBud
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The Atom
The Atom
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Grade 10 Physical Sciences students revision of The Atom
Flashcards
14 cards
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Practice quiz
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Questions
14
Answers
1
The mass number of an atom is the sum of protons, neutronsand electrons
False
True
2
Niels Bohr's model of the atom introduced the idea of energy levels.
True
False
3
The nucleus of an atom contains:
Only neutrons
Electrons and neutrons
Only protons
Protons and neutrons
4
The atomic number of an element is the number of:
Neutrons
Protons and neutrons
Protons
Electrons
5
Which element has the atomic number 6?
Nitrogen
Oxygen
Hydrogen
Carbon
6
The atom is made up of protons, neutrons and electrons.
True
False
7
John Dalton proposed the atomic theory, which states that atoms are indivisible.
False
True
8
The first energy level can hold a maximum of 8 electrons.
False
True
9
Which scientist proposed the Planetary Model of the atom?
J. J. Thomson
Niels Bohr
John Dalton
Ernest Rutherford
10
The electron cloud is the area where electrons are most likely found.
False
True
11
What is the charge of a proton?
None
Negative
Neutral
Positive
12
Which subatomic particle has a negative charge?
Nucleus
Neutron
Electron
Proton
13
What is the mass of a neutron?
1 kilogram
0.5 atomic mass unit
1 atomic mass unit (amu)
0 atomic mass unti
14
Who is credited with the discovery of the electron?
Niels Bohr
Albert Einstein
J. J. Thomson
Ernest Rutherford
