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Atom Structure, Periodic Table, Counting Atoms, Chemical Formula, Chemical Reaction
Test Description: This review test includes questions about TEKS 8.5 A-E (See Test Title for Topics)
Instructions: Answer all questions to get your test result.
1) What subatomic particles are found inside the nucleus?
A
All of these
B
Electrons and Neutrons
C
Protons and Neutrons
D
Protons and Electrons
2) An element is shiny, ductile, and is reactive. This element is grouped with ___.
A
Metalloids
B
Nonmetals
C
Metals
D
None of these
3) According to the law of conservation of mass, the number of atoms of the reactants and the products should be___
A
Greater than
B
Equal
C
Less than
D
All of these
4) Which of the following determines the reactivity of an atom?
A
Valence Electrons
B
Electrons
C
Protons
D
Neutrons
5) Change of state, such as water evaporating, is an example of____.
A
A physical change.
B
A chemical property.
C
A physical property.
D
A chemical change.
6) The numbers (1-18) at the very top of the Periodic table of elements are called
A
Group
B
Atomic Number
C
Period
D
Atomic Mass
7) Sodium (Na) belong to Group 1, while Neon (ne), belong to group 18. Which element is more reactive?
A
Both of them
B
Sodium
C
Neon
D
None of them
8) The element's identity can be determined by its ___
A
Neutrons
B
Electrons
C
None of these
D
Protons
9) In an atom, the valence electrons can be found at ___
A
the outermost shell
B
All of these
C
the innermost shell
D
the nucleus
10) An element is dull, brittle, and not reactive. This element is a __
A
All of these
B
Metalloid
C
Metal
D
Nonmetal
*select an answer for all questions
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