Which of the following ions has the electron configuration 2,8,8?
Which of the following ions has the electron configuration 2,8,8? A. Na+ B. Mg2+ C. F– D. CI–…
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An element with the electron configuration of 1s 22s 22p 6 would have a combining…
An element with the electron configuration of 1s 22s 22p 6 would have a combining power of A.…
Rare gases are stable because they
Rare gases are stable because they A. contain equal number of protons and neutrons B. contain more electrons…
Which of the following electrons configurations correctly represents an inert element?
Which of the following electrons configurations correctly represents an inert element? A. 1s22s22p4 B. 1s22s22p63s2 C. 1s22s22p63s23p4 D.…
What type of reaction is represented by the following equation?(frac{2}{1})D(frac{3}{1})H → (frac{4}{4})He + (frac{1}{0})n +…
What type of reaction is represented by the following equation?(frac{2}{1})D(frac{3}{1})H → (frac{4}{4})He + (frac{1}{0})n + energy A. Nuclear…
Which of the following metals exists as liquid at ordinary temperature?
Which of the following metals exists as liquid at ordinary temperature? A. Copper B. Gold C. Mercury D.…
Which of the following substances cannot be classified as a heavy chemical?
Which of the following substances cannot be classified as a heavy chemical? A. AgNO3 B. CaO C. CaOCI2…
How many isotopes has hydrogen?
How many isotopes has hydrogen? A. 2 B. 3 C. 4 D. 5 Correct Answer: Option B Explanation
Compound N reacts with sodium metal to produce a gas that gives a ‘pop’ sound…
Compound N reacts with sodium metal to produce a gas that gives a ‘pop’ sound with a burning…
The main function of limestone in the blast furnance is to
The main function of limestone in the blast furnance is to A. act as a reducing agent B.…