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Reviewing The Atom
Test Description: Looking into the structure of the atom
Instructions: Answer all questions to get your test result.
1) If Neon (Ne) has 10 protons in each atom. Which of the following also describes an atom of Neon.
A
It has no neutrons
B
It has a total of 9 neutrons and electrons
C
It has 10 electrons
D
It has 5 neutrons and 7 electrons
2) Which statement best describes the part of an atom we refer to as the electron cloud?
A
It contains both electrons and neutrons
B
It contains both protons and electrons
C
It contains electrons which are negatively charged
D
It contains protons which are positively charged
3) In looking at a model of an Oxygen atom you see that it contains 8 electrons. How many protons should it have if it is considered a stable element?
A
10
B
8
C
6
D
16
4) Which of the following subatomic particles can be found inside the nucleus of an atom?
A
electrons only
B
neutrons only
C
protons and neutrons
D
protons, neutrons and electrons
5) Which of the following best describes the current model of an atom?
A
a solid sphere with electrons and protons embedded
B
a solid sphere unique for everything that exists
C
a central nucleus containing protons with electrons orbiting in specific paths
D
a central nucleus containing protons and neutrons with electrons orbiting in levels of high probability
6) Ernest Rutherford conducted an experiment using Gold (Au) foil. From his experiment he concluded which of the following?
A
Electrons have a positive charge
B
Atoms are solid, hard and unbending
C
An atom is mostly empty space
D
There is no such thing as an atom
7) An element with atomic number of 16 and atomic mass of 33 has how many neutrons in each atom?
A
33
B
16
C
32
D
17
8) What accounts for most of the mass of an atom?
A
electrons and neutrons
B
protons and neutrons
C
protons only
D
electrons only
9) Which best represents how electrons are arranged in the energy levels of a Lithium (Li) atom?
A
first level = 3 electrons second level = 0 electrons
B
first level = 1 electron second level = 2 electrons
C
first level = 2 electrons second level = 1 electron
10) Which distinguishes an atom of one element from an atom of a different element?
A
the difference between the number of protons and electrons
B
the number of neutrons
C
the number of protons and neutrons
D
the number of protons
*select an answer for all questions
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