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jok3333 [9.3K]
3 years ago
6

How is the periodic table of the elements arranged?

Chemistry
2 answers:
Bogdan [553]3 years ago
6 0

Answer:

Answer is B

Explanation:

i just took the test

vagabundo [1.1K]3 years ago
3 0

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.
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The modern periodic table was re-stated by Henry Moseley in the 1900s. He changed the basis of the periodic law to atomic masses.

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