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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 10 electrons
B
It has 5 neutrons and 7 electrons
C
It has a total of 9 neutrons and electrons
D
It has no neutrons
2) Which statement best describes the part of an atom we refer to as the electron cloud?
A
It contains both protons and electrons
B
It contains protons which are positively charged
C
It contains both electrons and neutrons
D
It contains electrons which are negatively 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
6
B
16
C
10
D
8
4) Which of the following subatomic particles can be found inside the nucleus of an atom?
A
protons and neutrons
B
protons, neutrons and electrons
C
electrons only
D
neutrons only
5) Which of the following best describes the current model of an atom?
A
a central nucleus containing protons with electrons orbiting in specific paths
B
a central nucleus containing protons and neutrons with electrons orbiting in levels of high probability
C
a solid sphere with electrons and protons embedded
D
a solid sphere unique for everything that exists
6) Ernest Rutherford conducted an experiment using Gold (Au) foil. From his experiment he concluded which of the following?
A
There is no such thing as an atom
B
An atom is mostly empty space
C
Atoms are solid, hard and unbending
D
Electrons have a positive charge
7) An element with atomic number of 16 and atomic mass of 33 has how many neutrons in each atom?
A
33
B
32
C
16
D
17
8) What accounts for most of the mass of an atom?
A
electrons and neutrons
B
electrons only
C
protons only
D
protons and neutrons
9) Which best represents how electrons are arranged in the energy levels of a Lithium (Li) atom?
A
first level = 1 electron second level = 2 electrons
B
first level = 3 electrons second level = 0 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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