Question

How is the periodic table of the elements arranged?

Answer 1

Answer:

Answer is B

Explanation:

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Answer 2

Answer:

B. By aligning groups with common properties.

Explanation:

• The periodic table is a table of elements arranged into rows called periods and columns called groups.
• Elements with similar chemical properties are placed in the same group. For example, group 1 elements known as alkali metals share similar properties.
• Elements in the same period or low have the same number of energy shells or energy levels. For example elements in period 3 have 3 energy levels.