Question

metals, nonmetals, and metalloids
which statement is true about the periodic table?
elements in the same group or column have similar properties.
nonmetals are on the left side of the table.
metals are on the right side of the table.
all elements in a row have the same # of protons.

Explanation:

• Elements in the same group or column have similar properties: This is a fundamental property of the periodic table. Elements in the same group have the same number of valence electrons, which leads to similar chemical properties.
• Nonmetals are on the left side of the table: Nonmetals are actually on the right side of the periodic table.
• Metals are on the right side of the table: Metals are on the left side and in the middle (transition metals) of the periodic table.
• All elements in a row have the same # of protons: Each element has a unique number of protons (atomic number). Elements in a row (period) have increasing atomic numbers.

Answer:

Elements in the same group or column have similar properties.