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8th Grade - 1st Term Exam (matter)
Test Description: 1st term exam pt 2 (matter)
Instructions: Answer all questions to get your test result.
1) Aluminum is used to make soft drink cans, foil, and wire. What is the smallest unit of aluminum that still maintains the characteristics of aluminum?
A
nucleus
B
molecule
C
atom
D
neutron
2) Chemical bonds that form by losing and gaining electrons are called which of the following?
A
hydrogen bonds
B
ionic bonds
C
covalent bonds
D
metallic bonds
3) When two or more elements combine by sharing electrons, what type of bond do they form?
A
metallic bonds
B
covalent bonds
C
hydrogen bonds
D
ionic bonds
4) Which of the following is the structure of an atom most like?
A
baseball field
B
forest
C
factory
D
solar system
5) Which of these is not a part of the atom?
A
electron
B
quantron
C
neutron
D
proton
6) Which atomic particles will you find inside of the nucleus of an atom?
A
protons, neutrons
B
protons, electrons
C
neutrons, electrons
D
electrons only
7) Which atomic particle has a negative charge?
A
proton
B
nuetron
C
quantron
D
electron
8) If an element has an atomic number of 12, how many electrons does it have?
A
8
B
24
C
18
D
12
9) If an element has an atomic number of 30 and the atomic mass 0f 65. What is the name of the element?
A
Bromine
B
Terbium
C
Zinc
D
Americum
10) If an element has an atomic number of 22 and the atomic mass is 48 how many neutrons does it have?
A
26
B
22
C
48
D
70
*select an answer for all questions
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