McGraw-Hill Online Learning Center Test<BLURT>

McGraw-Hill Online Learning Center Test



1. Review the animation and answer the following questions.

A covalent bond occurs when

A. two atoms share electrons.
B. one atom gives up an electron to another atom.
C. slight opposite charges found in two atoms attract.
D. there is overlap of the atomic nuclei.



2. The reason covalent bonds form is A. there is an attraction between the nuclei of certain atoms.
B. each atom is trying to fill its outer electron shell.
C. electrons are naturally attracted to each other.
D. the positive charge of one atom attracts the negative charge of another.



3. Which statement is NOT true? A. Covalent bonds can form between atoms of the same element.
B. Covalent bonds can form between atoms of different elements.
C. The number of electrons in the two atoms forming a covalent bond can be very different.
D. The atoms of all elements can readily form covalent bonds.


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