Multiple Choice
Which of the following elements is classified as a metalloid?
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2. Atoms & Elements
Periodic Table: Classifications
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Which term is used to describe the rows on the periodic table?
A
Blocks
B
Periods
C
Families
D
Groups
Verified step by step guidance1
Understand that the periodic table is organized both horizontally and vertically to group elements with similar properties.
Recognize that the horizontal rows in the periodic table are called 'Periods'. Each period corresponds to the filling of a principal energy level of electrons.
Know that the vertical columns are called 'Groups' or 'Families', which group elements with similar chemical properties.
Identify that 'Blocks' refer to sections of the periodic table based on electron subshells (s, p, d, f blocks), not rows or columns.
Therefore, the term used to describe the rows on the periodic table is 'Periods'.
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