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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.
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