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Structure Of An Atom Quiz
Test Description: Review
Instructions: Answer all questions to get your test result.
1) All elements are made of basic particles called
A
cells
B
atoms
C
compounds
D
molecules
2) Which parts of the atom move around the nucleus?
A
protons
B
quarks
C
electrons
D
neutrons
3) When an atom loses an electron, it becomes a ___.
A
positive ion
B
electron-dot-diagram
C
negative ion
D
neutral ion
4) The atomic number of an element is based on the ____.
A
number of protons
B
number of neutrons
C
number of electrons
D
mass of the nucleus
5) What information in the periodic table indicates the number of protons in an atom?
A
the position of the element in its column
B
the element’s atomic number
C
the element’s chemical symbol
D
the element’s atomic mass
6) Which particles in atoms have a negative charge?
A
protons
B
quarks
C
electrons
D
neutrons
7) What is the atomic number of carbon?
A
4.003
B
12.01
C
2
D
6
8) How many protons does a neutral atom of oxygen have?
A
8
B
4
C
6
D
2
9) How many electrons does a neutral atom of helium have?
A
2
B
4
C
8
D
3
10) What particles primarily influence the atomic mass of an atom?
A
neutrons and electrons
B
protons and electrons
C
protons and neutrons
D
electrons and quarks
11) Two atoms have the same number of protons but different numbers of neutrons. Which of the following is true?
A
They are compounds
B
They are isotopes
C
They are different elements
D
They are ions
12) Two atoms have different numbers of protons. Which of the following must be true?
A
They are different elements
B
They are isotopes
C
They are compounds
D
They are ions
13) Which of the following is true of atoms?
A
They always have the same number of protons and neutrons
B
They have the same atomic mass
C
They always have the same number of protons and electrons
D
They are mostly empty space
*select an answer for all questions
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