The number of neutrons in an atom is equal to ________.
A) the atomic number
B) the mass number
C) the mass number + the atomic number
D) the mass number - the atomic number
E) the number of protons
Correct Answer:
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Q34: The mass number of an atom can
Q35: The smallest particle of an element that
Q36: The elements sodium,magnesium,and silicon _.
A)are isotopes of
Q37: Consider a neutral atom with 30 protons
Q38: What is the symbol of the element
Q40: The atomic number of an atom is
Q41: What is the electron arrangement for aluminum?
A)2,8,3
B)2,8,5
C)2,8,7
D)2,8,8
E)2,8,10
Q42: The maximum number of electrons that may
Q43: Valence electrons are electrons located _.
A)in the
Q44: What element has the electron arrangement 2,8,4?
A)carbon
B)oxygen
C)sulfur
D)iron
E)silicon
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