Structure Of An Atom Quiz Question Preview (ID: 44481)


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All elements are made of basic particles called
a) atoms
b) molecules
c) cells
d) compounds

Which parts of the atom move around the nucleus?
a) electrons
b) protons
c) neutrons
d) quarks

When an atom loses an electron, it becomes a ___.
a) positive ion
b) negative ion
c) electron-dot-diagram
d) neutral ion

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

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 chemical symbol
c) the element’s atomic number
d) the element’s atomic mass

Which particles in atoms have a negative charge?
a) electrons
b) protons
c) neutrons
d) quarks

What is the atomic number of carbon?
a) 4.003
b) 12.01
c) 6
d) 2

How many protons does a neutral atom of oxygen have?
a) 8
b) 6
c) 4
d) 2

How many electrons does a neutral atom of helium have?
a) 2
b) 3
c) 4
d) 8

What particles primarily influence the atomic mass of an atom?
a) protons and neutrons
b) protons and electrons
c) neutrons and electrons
d) electrons and quarks

Two atoms have the same number of protons but different numbers of neutrons. Which of the following is true?
a) They are isotopes
b) They are ions
c) They are different elements
d) They are compounds

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 ions
d) They are compounds

Which of the following is true of atoms?
a) They always have the same number of protons and neutrons
b) They always have the same number of protons and electrons
c) They are mostly empty space
d) They have the same atomic mass

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