The atomic number of carbon is 6. How many unpaired electrons are in its outer shell?
A) Two
B) Three
C) Four
D) Five
Correct Answer:
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Q3: Which of the following elements is least
Q5: An isotope of an element contains different
Q8: A negatively charged subatomic particle that moves
Q10: Acids:
A)are proton donors.
B)taste sour.
C)release hydrogen ions in
Q11: Which of the following represents a trace
Q11: Carbon has an atomic number of 6.
Q15: A solution that contains a greater concentration
Q17: An ionic bond is formed by:
A) two
Q18: Substances that accept hydrogen ions are called:
A)
Q19: An example of an element would be:
A)
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