The Periodic Table Online Practice

Complete this assessment to review what you’ve learned. It will not count toward your grade.
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Question
Which two patterns are used to arrange elements in the periodic table? (1 point)
Responses

The atoms are arranged by atomic number, and elements with similar properties are aligned horizontally.
The atoms are arranged by atomic number, and elements with similar properties are aligned horizontally.

The atoms are arranged by atomic mass, and elements with similar properties are aligned horizontally.
The atoms are arranged by atomic mass, and elements with similar properties are aligned horizontally.

The atoms are arranged by atomic mass, and elements with similar properties are aligned vertically.
The atoms are arranged by atomic mass, and elements with similar properties are aligned vertically.

The atoms are arranged by atomic number, and elements with similar properties are aligned vertically.

1 answer

The correct response is:

The atoms are arranged by atomic number, and elements with similar properties are aligned vertically.

In the periodic table, elements are ordered by increasing atomic number (the number of protons in the nucleus), and elements with similar properties are grouped into columns, or groups, which run vertically.