Which of the following elements are the least reactive?
A) Alkali metals
B) Noble gases
C) Halogens
D) Alkaline earth metals
E) Metalloids
Correct Answer:
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Q33: One amu is defined as
A)the mass of
Q34: Atoms X, Y, Z, and R have
Q35: The chemical symbol for potassium is
A)P.
B)Po.
C)Pt.
D)Pm.
E)K.
Q36: Rutherford bombarded gold foil with alpha (α)
Q37: A column of the periodic table is
Q39: Which one of the following groups does
Q40: When an atom is represented by the
Q41: In the ionic compound with the general
Q42: Which of the following ions occurs commonly?
A)N
Q43: What is the chemical symbol for the
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