Which best describes a way that the periodic table is arranged?

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Asked 7/21/2016 12:54:08 PM

Updated 8/6/2022 8:41:52 PM

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User: Which best describes a way that the periodic table is arranged?

Weegy: Reading from left to right, they are arranged in increasing atomic number (protons ) Each period (going across) increases in atomic number As you go down a period, they have one more ring of electrons As you go down a column, called groups, [ the elements have the same number of valence electrons, which gives them similar chemical activity Metals are on the left, nonmetals on the right and metalloids along the zig-zag line that divides the metals and nonmetals, inert gases on the far right In general the elements do get heavier as you increase atomic number, but there are variances ]
tyralee|Points 10|

User: How do the elements change as you go down a group in the periodic table?

Weegy: There are 118 elements in the periodic table as of Feb 2010
theresearcher|Points 2086|

User: Which best describes why scientific models change over time?

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Asked 7/21/2016 12:54:08 PM

Updated 8/6/2022 8:41:52 PM

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Jozeal

As technology advances, new experiments often expose problems in accepted theories, best describes why scientific models change over time.

Added 8/6/2022 8:41:52 PM

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Which best describes a way that an experiment contradicted an existing model of the atom?

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Updated 11/22/2021 2:42:52 PM

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MichellDonovan

Rutherford showed that the atom must have a nucleus.: best describes a way that an experiment contradicted an existing model of the atom.

Added 11/22/2021 2:42:52 PM

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Which best describes why water dissolves solid ionic compounds?

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Updated 143 days ago|7/13/2024 12:44:46 PM

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Whitecæt

Best describes why water dissolves solid ionic compounds: Water molecules have a positively charged end and a negatively charged end.

Added 143 days ago|7/13/2024 12:44:44 PM

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