How many electrons are present in 40Ca2+?
A) 40
B) 38
C) 20
D) 18
Correct Answer:
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Q35: The systematic (IUPAC) name of MgI2 is:
A)
Q35: How many neutrons are present in
Q36: CaCl2 is an example of a(n):
A) covalent
Q37: The molecular formula for iron(II)bromide is _.
A)FeBr3
B)FeBr2
C)I2Br2
D)IBr3
Q38: The molecular formula for dinitrogen pentoxide is
Q41: When electrons are shared between pairs of
Q43: The atomic mass of an atom is
Q43: The ratio of isotopes for a given
Q44: Which of the following is a metalloid?
A)Boron
B)Lithium
C)Uranium
D)Tungsten
Q45: Anions are negatively charged species that contain
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