An atom with an atomic mass of 15 belongs to an element with an atomic number of 7. Select the correct distribution of subatomic particles for this atom.
A) 7 protons, 8 neutrons, 7 electrons
B) 7 protons, 7 neutrons, 8 electrons
C) 8 protons, 7 neutrons, 7 electrons
D) None of these are correct.
Correct Answer:
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Q1: The amount of
Q2: A(n)
Q3: Every atom of the same element must
Q4: Select the subatomic particles that occupy orbits
Q5: An atom with 11 protons, 11 neutrons,
Q7: Select the correct description of elements.
A) anything
Q8: Select the example of a compound.
A) O2
B)
Q9: Select the correct statement.
A) Molecules always contain
Q10: When dissolved in water, acids yield
A) positively
Q11: The body keeps the pH of blood
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