What ion will be formed by the selenium atom shown below when it has a stable set of valence electrons?

Selenium atom
A. Se6+
B. Se2+
C. Se6−
D. Se2−

Correct Answer: D
Which of the following is the best description of how electrons are transferred in an ionic bond?
A. A metal atom loses electrons and a nonmetal atom gains electrons.
B. A metal atom gains electrons and a nonmetal atom loses electrons.
C. A metal and a nonmetal atom lose electrons.
D. A metal and a nonmetal atom gain electrons.
Correct Answer: A
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A user is constructing an ionic bond between beryllium and chlorine and has reached the stage below. What should the user do next?

Beryllium and chlorine
A. Transfer an electron from the beryllium atom to the chlorine atom.
B. Transfer an electron from the chlorine atom to the beryllium atom.
C. Add another beryllium atom.
D. Add another chlorine atom.

Correct Answer: D
Zinc phosphide, Zn3P2, is often used as a rat poison. Phosphorus has 5 valence electrons. How many valence electrons does each zinc atom lose?
A. 1
B. 2
C. 3
D. 4
Correct Answer: B
Lithium nitride has the chemical formula Li3N. Rubidium is in the same chemical family as lithium. What is the formula of rubidium nitride?
A. RbN
B. RbN3
C. Rb3N
D. Rb2N3
Correct Answer: C