Multiple Choice
Which of the following is a metalloid?
A) Boron
B) Lithium
C) Uranium
D) Tungsten
Correct Answer:
Verified
Correct Answer:
Verified
Q7: In the modern periodic table, the densest
Q8: The molecular formula for calcium phosphate is
Q9: The systematic name of V<sub>2</sub>O<sub>5</sub>is vanadium pentoxide.
Q10: The vertical columns in the periodic table
Q12: How many electrons are present in <sup>40</sup>Ca<sup>2+</sup>?<br>A)40<br>B)38<br>C)20<br>D)18
Q13: Potassium has two stable isotopes: <sup> 39
Q14: _ are examples of actinides.<br>A)Ti and Cr<br>B)U
Q15: Elements in a periodic family tend to
Q16: The molecular formula for iron(II)bromide is _.<br>A)FeBr<sub>3</sub><br>B)FeBr<sub>2</sub><br>C)I<sub>2</sub>Br<sub>2</sub><br>D)IBr<sub>3</sub>
Q35: CaCl<sub>2</sub> is an example of a(n):<br>A) covalent