Periodic Families Flashcard

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What are Alkaline Earth Metals?

Back

Alkaline Earth Metals are a group of elements in Group 2 of the periodic table, characterized by having two electrons in their outer shell. They include elements like Beryllium (Be), Magnesium (Mg), Calcium (Ca), Strontium (Sr), Barium (Ba), and Radium (Ra).

Front

Which element is an example of an Alkaline Earth Metal?

Back

Calcium (Ca) is an example of an Alkaline Earth Metal.

Front

What is the charge of an anion?

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An anion has a negative charge.

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What is the definition of a noble gas?

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Noble gases are elements in Group 18 of the periodic table, known for their lack of reactivity due to having a full valence shell of electrons. Examples include Helium (He), Neon (Ne), Argon (Ar), Krypton (Kr), Xenon (Xe), and Radon (Rn).

Front

Which element is classified as a noble gas?

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Argon (Ar) is classified as a noble gas.

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What are Alkali Metals?

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Alkali Metals are a group of elements in Group 1 of the periodic table, characterized by having one electron in their outer shell. They include Lithium (Li), Sodium (Na), Potassium (K), Rubidium (Rb), Cesium (Cs), and Francium (Fr).

Front

Which element is an example of an Alkali Metal?

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Sodium (Na) is an example of an Alkali Metal.

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Who is Dmitri Mendeleev?

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Dmitri Mendeleev was a Russian chemist who created the first widely recognized periodic table of elements, organizing them by increasing atomic mass.

Front

Who is Henry Moseley?

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Henry Moseley was a British physicist who redefined the periodic table by arranging elements according to their atomic number instead of atomic mass.

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What is the significance of atomic number in the periodic table?

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The atomic number represents the number of protons in an atom's nucleus and determines the element's identity and position in the periodic table.