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Matter
Test Description: Answer the following questions to review for your unit test.
Instructions: Answer all questions to get your test result.
1) Which of these is NOT an example of matter?
A
The air in the wind
B
The water in the ocean
C
The bright sunlight
D
The sand on the beach
2) The number of protons in the nucleus of an atom is also called the
A
Atomic weight
B
Mass Number
C
Ion
D
Atomic number
3) The sum of the protons and neutrons in the nucleus of an atom is called the
A
Ion
B
Atomic mass
C
Atomic number
D
Weight number
4) Atoms are mostly composed of:
A
Protons
B
Neutrons
C
Empty space
D
Electrons
5) Elements with the same number of protons but different number of electrons are called:
A
Pairs
B
Metals
C
Isotopes
D
Ions
6) An atom of helium has two protons and charge of zero. How many electrons does an atom of helium have?
A
2
B
1
C
4
D
0
7) Which of these describes the location of the neutrons in an atom?
A
Orbiting the center of the atom
B
Scattered randomly
C
In the center of the atom
D
Distributed evenly throughout the atom
8) Which of these describes the property that changes the MOST when a molecule loses an electron?
A
The mass of the molecule
B
The elements of the molecule
C
The charge of the molecule
D
The number of neutrons
9) Which element is least likely to combine with another element?
A
Chlorine (Cl), a halogen
B
Neon (Ne), a noble gas
C
Iron (Fe), a metal
D
Silicon (Se), a metalloid
10) Which element would most likely bond with Oxygen (O)?
A
Mg (magnesium)
B
K (potassium)
C
P (phosphorous)
D
Na (sodium)
*select an answer for all questions
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