How many electrons are in the outermost shell of an atom with 15 electrons?
A) 10
B) 2
C) 5
D) 8
Correct Answer:
Verified
Q3: Which of the following atoms is inert?
A)atomic
Q4: Two or more atoms of the same
Q5: What varies from one isotope of an
Q6: Na+is best known as a(n):
A)ion.
B)compound.
C)molecule.
D)macromolecule.
Q7: An atom has 3 electrons in its
Q9: What is meant by N2?
A)Two nitrogen atoms
Q10: What contributes to the calculation of the
Q11: Which subatomic particle carries a negative charge?
A)proton
B)electron
C)neutron
D)nucleus
Q12: An atom of iron has an atomic
Q13: The atomic number represents the number of:
A)protons
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