Quizzes: Molecules and their formation

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Webcytology was created for ThinkQuest 1999.

Molecules and their formation

The atoms in a molecule are held together by
	1.	bonds
	2.	gravity
	3.	a sticky material in all matter
	4.	a spherical "shell" around the atoms

An ionic bond is one in which
	1.	the nuclei of the two atoms merge into one
	2.	the atoms simply switch one or more of their electrons
	3.	an electron or electrons are shared between atoms
	4.	an electron or electrons actually jump from one atom to another

After an ionic bond is formed, the atoms are held together because
	1.	one atom has a positive charge and the other a negative charge, and oppositely charged atoms attract to one another
	2.	the electrons are being shared, and the atoms cannot separate at that point
	3.	the gravity between the atoms is strong enough to keep them together
	4.	currently unknown reasons

A covalent bond is one in which
	1.	the nuclei of the two atoms merge into one
	2.	the atoms simply switch one or more of their electrons
	3.	an electron or electrons are shared between atoms
	4.	an electron or electrons actually jump from one atom to another

A molecule in which each side of the molecule is slightly charged because the electrons are not shared equally between the atoms is called
	1.	an element
	2.	a nonpolar molecule
	3.	a polar molecule
	4.	an ion

ThinkQuest Team #27819 - 27819@for.net
Team: Andrew Kallem, Josh Tauberer
Coaches: Ms. Acerra, Mr. Kwitkin