Which element forms an ionic compound with oxygen that has the formula XO?
A) germanium
B) aluminum
C) lithium
D) calcium
E) potassium
Correct Answer:
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Q10: Protons and neutrons are examples of _
A)nuclei.
B)nuclides.
C)nucleons.
D)isotopes.
E)charged
Q23: Isotopes have _.
A)the same atomic mass.
B)the same
Q25: What is the nuclide symbol for the
Q26: Nuclei with certain numbers of protons and
Q27: Identify the atom or ion:
i) _;
Q29: Which of the following is an alkali
Q30: Which element forms ionic compounds with the
Q32: A strontium-90 atom that has lost 2
Q36: Elements 21 through 30 are known as
Q56: Calcium is an example of _
A) an
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