Review Exam Unit Period table and Trends

In the modern Periodic Table, the elements are arranged in order of increasing

• atomic number

• mass number

• oxidation number

• valence number

At STP, which of the following elements has the most metallic character?

• iodine

• bromine

• chlorine

• fluorine

Tags

NGSS.HS-PS1-1

As the elements are considered from the top to the bottom of Group VA, which sequence in properties occurs?

• metal → metalloid → nonmetal

• metal → nonmetal → metalloid

• metalloid → metal → nonmetal

• nonmetal → metalloid → metal

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

In Period 2, as the elements are considered from left to right, there is a decrease in

• A. ionization energy

• B. atomic mass

• C. metallic character

• D. nonmetallic character

Tags

NGSS.HS-PS1-1

Which of the following atoms has the smallest covalent atomic radius?

• Li

• Be

• C

• F

Tags

NGSS.HS-PS1-1

Which element listed has the least metallic character?

• Na

• Mg

• Al

• Si

As the atoms of the elements in Group 16 (VIA) are considered in order from top to bottom, their electronegativities

• decrease

• increase

• remain the same

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Which element in Period 3 has the largest covalent atomic radius?

• Cl

• Al

• Na

• P

An atom of which of the following elements has the smallest covalent radius?

• Li

• Be

• C

• F

The pair of elements with the most similar chemical properties are

• Mg and S

• Ca and Br

• Mg and Ca

• S and Ar