Glencoe Biology

Section 1: Atoms, Elements, and Compounds

Self-Check Quizzes

1.
How many different kinds of atoms does an element contain?
A)six
B)two
C)four
D)one
2.
Atoms of the same element that have different numbers of neutrons are called ____.
A)isotopes
B)compounds
C)neutrino elements
D)molecules
3.
In this water molecule, how many electrons does each hydrogen atom share with oxygen?
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A)two
B)one
C)four
D)eight
4.
How are the water molecules in a raindrop held together?
A)covalent bonds
B)van der Waals forces
C)attraction between positive charges
D)attraction between negative charges
5.
How are atoms in molecules held together?
A)neutron sharing
B)ionic bonds
C)proton sharing
D)covalent bonds
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