How is the modern periodic table different from Dmitri Mendeleev's table?
A. Elements that have similar properties are now grouped together.
O B. Elements are now organized by increasing atomic mass.
OC. The lanthanides and actinides are now in rows below the main
table.
D. The table is now used to predict the properties of elements.

Question

yeimyp59399 yeimyp59399

08-06-2022
Chemistry

contestada

How is the modern periodic table different from Dmitri Mendeleev's table?
A. Elements that have similar properties are now grouped together.
O B. Elements are now organized by increasing atomic mass.
OC. The lanthanides and actinides are now in rows below the main
table.
D. The table is now used to predict the properties of elements.

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kumaripoojavt kumaripoojavt · Answer 1 · 2022-06-14T14:03:29+02:00

Elements are now organized by increasing atomic mass. Hence, option B is correct.

What is a periodic table?

The periodic table is a tabular array of chemical elements organized by atomic number.

Mendeleev's periodic table orders the elements based on their atomic mass whereas the Modern periodic table orders the elements based on their atomic number.

Hence, option B is correct.

Learn more about the periodic table here:

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