Periodic Table Regents Questions

Which two elements have the most similar chemical properties?

• beryllium and magnesium

• phosphorus and sulfur

• hydrogen and helium

• potassium and strontium

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The arrangement of the elements from left to right in Period 4 on the Periodic Table is based on

• atomic mass

• atomic number

• the number of electron shells

• the number of oxidation states

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Which element is least likely to undergo a chemical reaction?

• lithium

• fluorine

• carbon

• neon

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Which element has a melting point higher than the melting point of rhenium?

• tantalum

• osmium

• tungsten

• iridium

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Which property can be defined as the ability of a substance to be hammered into thin sheets?

• conductivity

• melting point

• malleability

• solubility

Which list of elements consists of a metal, a metalloid, and a noble gas?

• sodium, silicon, argon

• aluminum, sulfur, argon

• magnesium, sodium, sulfur

• silicon, phosphorus, chlorine

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Which properties are characteristic of Group 2 elements at STP?

• good electrical conductivity and electronegativities less than 1.7

• good electrical conductivity and electronegativities greater than 1.7

• poor electrical conductivity and electronegativities less than 1.7

• poor electrical conductivity and electronegativities greater than 1.7

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Elements that have atoms with stable valence electron configurations in the ground state are found in

• Group 1

• Group 11

• Group 8

• Group 18

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A magnesium atom that loses two electrons becomes a

• positive ion with a smaller radius

• positive ion with a larger radius

• negative ion with a smaller radius

• negative ion with a larger radius

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An atom of which element has the strongest attraction for the electrons in a bond?

• aluminum

• chlorine

• carbon

• lithium

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