Which of the following elements is classified as a semimetal?
A) calcium
B) boron
C) fluorine
D) uranium
Correct Answer:
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Q141: Which element has the chemical symbol,S?
A)selenium
B)silicon
C)sulfur
D)scandium
Q142: Which element has the chemical symbol,Ru?
A)rubidium
B)ruthenium
C)rutherfordium
D)rhodium
Q144: To the correct number of significant figures,what
Q146: Which of the following elements is not
Q148: To the correct number of significant figures,what
Q150: Which of the following elements is a
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