UNIT 3: Review

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

• atomic size

• atomic number

• atomic mass

• ionization energy

The chemical properties of the elements are Periodic functions of their atomic

• spin

• isotopes

• mass

• number

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Which pair contains elements which have the most similar chemical properties?

• Mg and Ca

• N and S

• H and He

• Na and Cl

The element with an atomic number of 34 is most similar in its chemical behavior to the element with an atomic number of

• 19

• 31

• 16

• 85

Silicon is most similar in chemical activity to

• carbon

• lead

• sulfur

• nitrogen

Which element has the largest atomic radius?

• Mg

• Ca

• Sr

• Ba

This element 2–8–6 belongs in Period

• 1

• 16

• 3

• 4

Most of the elements in the Periodic Table are classified as

• metalloids

• noble gases

• metals

• nonmetals

Arsenic is best classified as a

• nonmetal

• metalloid

• metal

• lanthanoid

The alkali metals all have the same

• electronegativity

• atomic radius

• ionization energy

• oxidation number